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Ralph Troll
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Journal Articles
The American Biology Teacher (1985) 47 (4): 249.
Published: 01 April 1985
Journal Articles
The American Biology Teacher (1983) 45 (8): 434.
Published: 01 December 1983
Journal Articles
The American Biology Teacher (1981) 43 (2): 105.
Published: 01 February 1981
Journal Articles
The American Biology Teacher (1980) 42 (6): 365.
Published: 01 September 1980
Journal Articles
The American Biology Teacher (1980) 42 (3): 192.
Published: 01 March 1980
Journal Articles
The American Biology Teacher (1980) 42 (1): 55–60.
Published: 01 January 1980
Journal Articles
The American Biology Teacher (1979) 41 (6): 375.
Published: 01 September 1979
Journal Articles
The American Biology Teacher (1979) 41 (2): 120–121.
Published: 01 February 1979
Journal Articles
The American Biology Teacher (1978) 40 (6): 388–389.
Published: 01 September 1978
Journal Articles
The American Biology Teacher (1977) 39 (9): 552.
Published: 01 December 1977
Journal Articles
The American Biology Teacher (1977) 39 (8): 507.
Published: 01 November 1977
Journal Articles
The American Biology Teacher (1975) 37 (5): 317.
Published: 01 May 1975
Journal Articles
The American Biology Teacher (1974) 36 (8): 517.
Published: 01 November 1974