Philippine Council for Agriculture and Resources Research. Socio-Economics Research Division. (1976). Bibliography of research studies in agriculture, forestry and fisheries in Bicol Region. Philippine Council for Agriculture and Resources Research.
Cita Chicago (17th ed.)Philippine Council for Agriculture and Resources Research. Socio-Economics Research Division. Bibliography of Research Studies in Agriculture, Forestry and Fisheries in Bicol Region. Los Banos, Laguna: Philippine Council for Agriculture and Resources Research, 1976.
Cita MLA (9th ed.)Philippine Council for Agriculture and Resources Research. Socio-Economics Research Division. Bibliography of Research Studies in Agriculture, Forestry and Fisheries in Bicol Region. Philippine Council for Agriculture and Resources Research, 1976.