APA引文

Villanueva, P. M. (1989). English skills for college freshmen. Katha Pub.

Chicago Style (17th ed.) Citation

Villanueva, Perla M. English Skills for College Freshmen. Quezon City: Katha Pub, 1989.

MLA引文

Villanueva, Perla M. English Skills for College Freshmen. Katha Pub, 1989.

警告：這些引文格式不一定是100％准確.