Ungson, R. (1975). Abaca marketing, Part I: Bicol. Special Studies Division, Dept. of Agriculture.
Citación estilo ChicagoUngson, R.D. Abaca Marketing, Part I: Bicol. Quezon City: Special Studies Division, Dept. of Agriculture, 1975.
Cita MLAUngson, R.D. Abaca Marketing, Part I: Bicol. Special Studies Division, Dept. of Agriculture, 1975.
Warning: These citations may not always be 100% accurate.