APA

Gerhold H. D. (. S. E. J. (. M. R. E. (. W. J. A. (., . (1964). Proceedings of a N.A.T.O and N.S.F advanced study institute on Genetic improvement for disease and insect resistance of forest trees, breeding pest- resistant trees held at the Pennsylvania state University, University park, Pennsylvania Aug.30 to Sep. 11, 1964. Paris: Symposium Publications Division, Pergamon Press.

Chicago

Gerhold H D (Ed.) Schreiner E J (Ed.) Mcdermott R E (Ed.) Winieski J A (Ed.), . 1964. Proceedings of a N.A.T.O and N.S.F advanced study institute on Genetic improvement for disease and insect resistance of forest trees, breeding pest- resistant trees held at the Pennsylvania state University, University park, Pennsylvania Aug.30 to Sep. 11, 1964. Paris: Symposium Publications Division, Pergamon Press.

Harvard

Gerhold H. D. (. S. E. J. (. M. R. E. (. W. J. A. (., . (1964). Proceedings of a N.A.T.O and N.S.F advanced study institute on Genetic improvement for disease and insect resistance of forest trees, breeding pest- resistant trees held at the Pennsylvania state University, University park, Pennsylvania Aug.30 to Sep. 11, 1964. Paris: Symposium Publications Division, Pergamon Press.

MLA

Gerhold H D (Ed.) Schreiner E J (Ed.) Mcdermott R E (Ed.) Winieski J A (Ed.), . Proceedings of a N.A.T.O and N.S.F advanced study institute on Genetic improvement for disease and insect resistance of forest trees, breeding pest- resistant trees held at the Pennsylvania state University, University park, Pennsylvania Aug.30 to Sep. 11, 1964. Paris: Symposium Publications Division, Pergamon Press. 1964.