APA
Gerhold H. D, . (1966). Breeding Pest Resistant Trees : Proceedings of a N.A.T.O.s N.S.F. Advance study Institute on Genetic improvement for Disease and Insect Resistance of Forest Trees. : Pergaman Press, London.
Chicago
Gerhold H. D, . 1966. Breeding Pest Resistant Trees : Proceedings of a N.A.T.O.s N.S.F. Advance study Institute on Genetic improvement for Disease and Insect Resistance of Forest Trees. : Pergaman Press, London.
Harvard
Gerhold H. D, . (1966). Breeding Pest Resistant Trees : Proceedings of a N.A.T.O.s N.S.F. Advance study Institute on Genetic improvement for Disease and Insect Resistance of Forest Trees. : Pergaman Press, London.
MLA
Gerhold H. D, . Breeding Pest Resistant Trees : Proceedings of a N.A.T.O.s N.S.F. Advance study Institute on Genetic improvement for Disease and Insect Resistance of Forest Trees. : Pergaman Press, London. 1966.