TY - BOOK AU - Colquhoun,W.P TI - Biological rhythms and human performance SN - 0121820505 U1 - 591.5 PY - 1971/// CY - London PB - Academic Press KW - Human biology KW - Biological rhythms N1 - 1.The Explanation and Investigation of Biological Rhythms-- 2.Circadian Variations in Mental Efficiency-- 3.Temperament and Time of Day-- 4.Sleep Behaviour as a Biorhythm-- 5.A Periodic Basis for Perception and Action-- 6.Menstrual Cycles ER -