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Crawford G. Jackson,
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Journal Articles
The American Biology Teacher (1978) 40 (8): 517–518.
Published: 01 November 1978
Journal Articles
The American Biology Teacher (1976) 38 (5): 317.
Published: 01 May 1976
Journal Articles
The American Biology Teacher (1975) 37 (7): 442.
Published: 01 October 1975
Journal Articles
The American Biology Teacher (1973) 35 (6): 349.
Published: 01 September 1973
Journal Articles
The American Biology Teacher (1970) 32 (3): 173.
Published: 01 March 1970