APA(7版)引用形式

De Gracia, A. G. Q. (2009). Competence in college English. Rex Book Store.

Chicagoスタイル(17版)引用形式

De Gracia, Alta Grace Q. Competence in College English. Manila: Rex Book Store, 2009.

MLA(9版)引用形式

De Gracia, Alta Grace Q. Competence in College English. Rex Book Store, 2009.