Style de citation APA (7e éd.)

Christensen, J. A. (1977). Gramatica pedagogica (2. ed.). University of the Philippines Library.

Style de citation Chicago (17e éd.)

Christensen, J. A. Gramatica Pedagogica. 2. ed. Quezon City: University of the Philippines Library, 1977.

Style de citation MLA (9e éd.)

Christensen, J. A. Gramatica Pedagogica. 2. ed. University of the Philippines Library, 1977.