Canadian plant disease survey.

v.2 1921; v.40-41; v.40-41(1960-1961); v.42-43 1962-1963; v.44-45 1964-65; v.44-46 1964-1966; v.44-46(1964-1966); v.46-47 1966-67; v.44/47(1964/1967); v.48-49 1968-69; v.47-49(1967-1969); v.49-50; v.51-52; v.52 1972; v.53 1973; v.54-55 1974-75; v.53-55(1973-1975); v.56-57 1976-77; v.58-59 1978-79; v.56-59(1976-1979); v.56/59(1976/1979); v.60-61 1980-81; v.62-63 1982-83; v.60-64(1980-1984); v.64-65 1984-85; v.66-67 1986-87; v.65-68(1985-1988); v.68-69 1988-89; v.69-70(1989-1990); v.70-71 1990-91; v.72-73 1991-93; v.74-75 1994-95; v.72/75(1992/1995); v.76 no.1 1996; v.60(1980); v.6(1926)