PT  - JOURNAL ARTICLE
AU  - H. Hartridge
TI  - THE LADD FRANKLIN HYPOTHESIS OF COLOUR VISION
AID  - 10.1136/bjo.7.3.139
DP  - 1923 Mar 01
TA  - British Journal of Ophthalmology
PG  - 139--142
VI  - 7
IP  - 3
4099  - http://bjo.bmj.com/content/7/3/139.short
4100  - http://bjo.bmj.com/content/7/3/139.full
SO  - Br J Ophthalmol1923 Mar 01; 7