Bulletin / University of Delaware, Agricultural Experiment Station.

no.1-21 1888-1893; no.1-30 1888-96; v.1-19(1888-1892); v.20-43(1893-1899); no.22-57 1893-1902; no.31-60 1896-1903; v.44-66(1899-1904); no.58-83 1903-1908; v.67-83(1905-1908); no.61-99 1903-12; v.84-97(1909-1912); no.84-109 1909-1915; no.100-117 1913-17; no.110-135 1915-1924; no.118-138 1918-24; no.141-147 (1925-26); no.148-154 (1927-28); v.98-107(1912-1915); v.108-116(1915-1916); v.117-132(1917-1922); v.133-147(1922-1926); v.148-160(1927-1929); no.136-160 1924-1929; no.139-160 1925-29; no.155-167 (1928-30); v.161-174(1929-1931); no.161-174 1929-31; no.168-179 (1931-32); no.161-180 1929-1933; no.175-186 1932-33; v.175-189(1932-1934); no.180-191 (1933-34); no.181-195 1933-1935; no.187-205 1934-36; no.192-206 (1935-37); no.196-207 1935-1937; no.206-220 1937-39; no.208-221 1938-1939; no.207-223 (1937-40); no.221-235 1939-41; no.222-235 1940-1941; no.224-232 (1940-41); no.226-245 yr.1940-1943; no.233-243 (1941-43); no.236-251 1942-1944; no.236-259 1942-45; no.244-270 (1943-47); no.246-270 yr.1944-1947; no.260-275 1946-48; no.289-297 1951; no.276-300 1949-54; v.190-205(1934-1936); v.206-217(1937-1939); v.218-229(1939-1941); v.230-241(1941-1943); v.242-255(1943-1945); v.256-275(1945-1948); v.276-310(1949-1954); no.316-335 (1956-60); v.311-335(1954-1960); no.336-339 (1961-62); no.348-357 (1962-65); no.354 1965; no.362 1966; no.358-380 (1965-69); no.367-381 1968-1970; no.381-390 (1970-72); no.394-395 (1972-73); no.397-401 (1973); no.402-406 (1973); no.407-419 (1973-76); no.417 1976; v.397-405(1973); v.416-425(1975-1978); no.420-430 (1977-79); v.426-435(1978-1981); no.435-439 (1981-82); v.436-440(1981-1982); no.441-446 (1982-83); no.448-460 (1984); v.441-450(1982-1984); no.462-472 (1985-87); v.451-460; v.462-470; v.471-474(1987-1988); no.476-480 (1985-89); v.475-480(1988-1989); no.481-485 (1989-90); v.481-485(1989-1990); no.487-492 (1990-91); no.493-494 (1991); v.486-492(1990-1991); no.495-496 (1991-92); no.500-501 (1993-94); no.502-503 (1994-95); v.348(1962); v.349(1963); v.351(1964); v.352(1965); v.353(1965); v.354(1965)