PT  - JOURNAL ARTICLE
AU  - , 
TI  - Review
AID  - 10.2307/4443224
DP  - 1970 Nov 01
TA  - The American Biology Teacher
PG  - 499--500
VI  - 32
IP  - 8
4099  - http://abt.ucpress.edu/content/32/8/499.6.short
4100  - http://abt.ucpress.edu/content/32/8/499.6.full