The American biology teacher.

v.1-2; v.1-2 1938-1940; v.3-4 1940-1942; v.6-8 1943-1946; v.7-8 (Oct 1944-May 1946); v.9-10 (Oct 1946-Dec 1948; v.11-12 (1949-50); v.12-14 1950-1952; v.14-15 1952-1953; v.16-17 1954-1955; v.22-23 1960-1961; v.24-25 1962-1963; v.28 1966; v.31 1969; v.34 1972; v.37 1975; v.38 1976; v.39 1977; v.40 1978; v.41 1979; v.52 1990; v.53 1991; v.54 no.1-8 1992 Jan-Dec; v.55 no.1-8 1993 Jan-Dec; v.56 no.1-8 1994 Jan-Dec; v.57 no.1-8 1995 Jan-Dec; v.58 no.1-8 1996 Jan-Dec; v.59 no.1-9 1997 Jan-Dec; v.60 no.1-9 1998 Jan-Dec; v.61 no.1-9 1999 Jan-Dec; v.62 no.1-9 2000 Jan-Dec; v.63 no.1-9 2001 Jan-Dec; v.64 no.1-9 2002 Jan-Dec; v.65 no.1-9 2003 Jan-Dec; v.66 no.1-9 2004 Jan-Dec; v.67 no.1-9 2005 Jan-Dec; v.68 no.1-9 2006 Jan-Dec; v.69 no.1-5 2007 Jan-May; v.69 no.6-9 2007 Aug-Dec