PT  - JOURNAL ARTICLE
AU  - , 
TI  - Review
AID  - 10.2307/4445626
DP  - 1976 Sep 01
TA  - The American Biology Teacher
PG  - 377--378
VI  - 38
IP  - 6
4099  - http://abt.ucpress.edu/content/38/6/377.3.short
4100  - http://abt.ucpress.edu/content/38/6/377.3.full