APA (7e ed.) Bronvermelding

Kovda, V. A. (1989). Problemy zashchity pochvennogo pokrova i biosfery planety. Nauch. ︠t︡sentr biologicheskikh issledovaniĭ AN SSSR v Pushchine.

Chicago (17e ed.) Bronvermelding

Kovda, Viktor Abramovich. Problemy Zashchity Pochvennogo Pokrova I Biosfery Planety. Pushchino: Nauch. ︠t︡sentr biologicheskikh issledovaniĭ AN SSSR v Pushchine, 1989.

MLA (8e ed.) Bronvermelding

Kovda, Viktor Abramovich. Problemy Zashchity Pochvennogo Pokrova I Biosfery Planety. Nauch. ︠t︡sentr biologicheskikh issledovaniĭ AN SSSR v Pushchine, 1989.