Hepher, Balfour, Nutrition of pond fishes / Balfour Hepher. - Cambridge [Cambridgeshire] ; New York : Cambridge University Press, 1988. - x, 388 p. : ill. ; Includes indexes. ISBN: 0521341507 (U.S.) Subjects--Topical Terms: Fishes--Feeding and feeds.Fish ponds. LC Class. No.: SH156 / .H47 1988