A.J. Richards Plant breeding systems. Ed 2 - 2nd Ed - London Chapman and Hall 1997 - 529p A.J. Richards: Plant breeding systems. Ed 2. (2nd Ed) London. Chapman and Hall, 1997. 0-412-57450-0--(581.56RIC) ENGLISH ISBN: 0-412-57450-0 Subjects--Topical Terms: Breeding Dewey Class. No.: 581.56 / RIC