International workshop on cassava safety / ed. by M. Bokanga, A.J.A. Essers, N. Poulter, [et. al] . - Ibadan : Working Group on Cassava Safety, 1994 . - 416 p. ; 25 cm. - International Society for Horticultural Science 375 . ISBN: 9066053267 Source: Fonds FACAGRO Universal Decimal Class. No.: 633.493.