• Author: Hamm, H. E. M. Menaker
• Title: Retinal rhythms in chicks: circadian variation in melantonin and serotonin N-acetyltransferase activity
• Year: 1980
• Reference Type: Journal Article
• Journal/Book Title: Proc Natl Acad Sci U S A
• Volume: 77
• Issue: 8
• Pages: 4998-5002
• Date of Publication: Saturday, 20 December 1980