Quisumbing, R. P., & Lagman, M. V. (1980). An inquiry on the coconut industry in Eastern Visayas (1975-1980). Rex P. Quisumbing.
Chicago-viite (17. p.)Quisumbing, Rex P., ja Myrna V. Lagman. An Inquiry on the Coconut Industry in Eastern Visayas (1975-1980). Tacloban City: Rex P. Quisumbing, 1980.
MLA-viite (9. p.)Quisumbing, Rex P., ja Myrna V. Lagman. An Inquiry on the Coconut Industry in Eastern Visayas (1975-1980). Rex P. Quisumbing, 1980.
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