APA Баримт

UN. (1991). Population And The Environment: The Chellenges Ahead. United Nations.

Чикаго маягийн жагсаалт

UN. Population And The Environment: The Chellenges Ahead. New York: United Nations, 1991.

MLA ишлэл

UN. Population And The Environment: The Chellenges Ahead. United Nations, 1991.

Warning: These citations may not always be 100% accurate.