University of the Philippines (Los Banos) International Documentation Centre on Abaca, Nasol, R. L., Oliveros, I. A., Pulido, A. N., & Tabora, P. C. (1977). Economic information on the abaca industry. International Documentation Centre on Abaca University of the Philippines.
Chicago-referens (17:e uppl.)University of the Philippines (Los Banos) International Documentation Centre on Abaca, Ramon L. Nasol, Irma A. Oliveros, Angelo N. Pulido, och Ponfilo C. Tabora. Economic Information on the Abaca Industry. Los Banos, Laguna: International Documentation Centre on Abaca University of the Philippines, 1977.
MLA-referens (9:e uppl.)University of the Philippines (Los Banos) International Documentation Centre on Abaca, et al. Economic Information on the Abaca Industry. International Documentation Centre on Abaca University of the Philippines, 1977.