UP Institute for Small Scale Industries. (1985). Agriculture agribusiness opportunities. UP ISSI.
Cita Chicago (17th ed.)UP Institute for Small Scale Industries. Agriculture Agribusiness Opportunities. Quezon City: UP ISSI, 1985.
Cita MLA (9th ed.)UP Institute for Small Scale Industries. Agriculture Agribusiness Opportunities. UP ISSI, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.