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Robert L. Gering
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Journal Articles
The American Biology Teacher. 1953; 157184 doi: https://doi.org/10.2307/4438536
Published: 01 November 1953
Journal Articles
The American Biology Teacher. 1953; 15493–95 doi: https://doi.org/10.2307/4438485
Published: 01 April 1953
Journal Articles
The American Biology Teacher. 1952; 147173–176 doi: https://doi.org/10.2307/4438395
Published: 01 November 1952