APA

Ziegler T., David P., Ziegler T. N., Pham C. T., Nguyen T. Q. & Le M. D. (20180514). Morphological and molecular review of Jacob's Mountain Stream Keelback Opisthotropis jacobi Angel Bourret, 1933 (Squamata: Natricidae) with description of a sibling species from northern Vietnam. : Zootaxa.

Chicago

Ziegler Thomas, David Patrick, Ziegler Tim N, Pham Cuong T, Nguyen Truong Q and Le Minh D. 20180514. Morphological and molecular review of Jacob's Mountain Stream Keelback Opisthotropis jacobi Angel Bourret, 1933 (Squamata: Natricidae) with description of a sibling species from northern Vietnam. : Zootaxa.

Harvard

Ziegler T., David P., Ziegler T. N., Pham C. T., Nguyen T. Q. and Le M. D. (20180514). Morphological and molecular review of Jacob's Mountain Stream Keelback Opisthotropis jacobi Angel Bourret, 1933 (Squamata: Natricidae) with description of a sibling species from northern Vietnam. : Zootaxa.

MLA

Ziegler Thomas, David Patrick, Ziegler Tim N, Pham Cuong T, Nguyen Truong Q and Le Minh D. Morphological and molecular review of Jacob's Mountain Stream Keelback Opisthotropis jacobi Angel Bourret, 1933 (Squamata: Natricidae) with description of a sibling species from northern Vietnam. : Zootaxa. 20180514.