• Author: Hastings, J.W. B. M. Sweeney
• Title: The Gonyaulax clock.
• Year: 1959
• Reference Type: Journal Article
• Journal/Book Title: In: Photoperiodism in Plants and Animals. (R.B. Withrow, ed.), A.A.A.S. Press, Washington, D.C.
• Issue: 567-584
• Date of Publication: Sunday, 20 December 1959