Experiments in plant physiology [by] Francis H. Witham, David F. Blaydes [and] Robert M. Devlin. Witham, Francis H., 1936- Blaydes, David F., 1934- joint author. Devlin, Robert M., joint author. Plant physiology Laboratory manuals. QK711.2 .W58 581.876 WIE Includes Index. Bibliography: p. 241-242. New York, Van Nostrand Reinhold Co. c1971. c1971. 1971 Text viii, 245 p. : eng