Cita APA

SC Tiwari. (1992). Concepts of modern ecology. Bishen Singh Mahendra Pal singh.

Citación estilo Chicago

SC Tiwari. Concepts of Modern Ecology. Dehra Dun: Bishen Singh Mahendra Pal singh, 1992.

Cita MLA

SC Tiwari. Concepts of Modern Ecology. Bishen Singh Mahendra Pal singh, 1992.