Santos, M. Q., Yap, H. J., Kapili, L. V., Tupas, F., & De los Santos, E. P. (1968). College freshman English workbook (Experimental edition.). University of the Philippines Press.
Citazione stile Chigago Style (17a edizione)Santos, Maria Q., Herminia J. Yap, Lily V. Kapili, Filonila Tupas, e Ester P. De los Santos. College Freshman English Workbook. Experimental edition. Quezon City: University of the Philippines Press, 1968.
Citatione MLA (9a ed.)Santos, Maria Q., et al. College Freshman English Workbook. Experimental edition. University of the Philippines Press, 1968.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.