Ridman, W. J. Experimentation in biology ; an introduction to desing and analysis - Bishopbriggs, Glaswod : Blackie, 1975 - 233 p. - Tertiary level biology . - Tertiary level biology . LCCN: 48414 Subjects--Topical Terms: BiologĂa experimental. Dewey Class. No.: 574 / R5