APA Баримт

United nations environment programme. (1990). Children and the environment: The state of the environment. UN.

Чикаго маягийн жагсаалт

United nations environment programme. Children and the Environment: The State of the Environment. Nairobi: UN, 1990.

MLA ишлэл

United nations environment programme. Children and the Environment: The State of the Environment. UN, 1990.

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