Gaya APA

Guidelines of lake management : vol. 5. management of lake acidification / editor Sven Erik Jorgensen. (1993). : Nairobi : International Lake Environment Committeee : United Nations Environment Programme.

Gaya MLA

Guidelines of lake management : vol. 5. management of lake acidification / editor Sven Erik Jorgensen. . : Nairobi : International Lake Environment Committeee : United Nations Environment Programme, 1993. Text.