Cita APA (7a ed.)

(1977). Philippine environmental management in the seventies: Speeches delivered during the National Conference on Environmental Management, June 6-7, 1977. National Environmental Protection Council.

Cita Chicago Style (17a ed.)

Philippine Environmental Management in the Seventies: Speeches Delivered During the National Conference on Environmental Management, June 6-7, 1977. Manila: National Environmental Protection Council, 1977.

Cita MLA (9a ed.)

Philippine Environmental Management in the Seventies: Speeches Delivered During the National Conference on Environmental Management, June 6-7, 1977. National Environmental Protection Council, 1977.