Colquhoun, W.P. Biological rhythms and human performance - Academic Press London 1971 - X,283 - Biological rhythms ISBN: 0-12-182050-5 = Biological rhythms and human performance Standard No.: M Standard Tech. Report. No.: LCCN: B Nat. Bib. No.: 1344 Nat. Bib. Agency Control No.: 543.9 BIO Subjects--Topical Terms: Chemistry Universal Decimal Class. No.: 543.9