APA-referens (7:e uppl.)

Philippine Council for Agriculture and Resources Research. (1977). The Philippines recommends for soil conservation 1977. PCARR.

Chicago-referens (17:e uppl.)

Philippine Council for Agriculture and Resources Research. The Philippines Recommends for Soil Conservation 1977. Los Banos, Laguna: PCARR, 1977.

MLA-referens (9:e uppl.)

Philippine Council for Agriculture and Resources Research. The Philippines Recommends for Soil Conservation 1977. PCARR, 1977.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.