APA

WITSCHI E., FOOTE C. L. & CHANG C. Y. (20000701). Modification of sex differentiation by steroid hormones in a tree frog (Pseudacris nigrita triseriata Wied). : Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.).

Chicago

WITSCHI E, FOOTE C L and CHANG C Y. 20000701. Modification of sex differentiation by steroid hormones in a tree frog (Pseudacris nigrita triseriata Wied). : Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.).

Harvard

WITSCHI E., FOOTE C. L. and CHANG C. Y. (20000701). Modification of sex differentiation by steroid hormones in a tree frog (Pseudacris nigrita triseriata Wied). : Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.).

MLA

WITSCHI E, FOOTE C L and CHANG C Y. Modification of sex differentiation by steroid hormones in a tree frog (Pseudacris nigrita triseriata Wied). : Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.). 20000701.