Cita APA (7th ed.)

Manalo, J. M. (1995). Towards competence in English grammar: Comprehensive and comprehensible. Communications Upgrade, International Inc.

Cita Chicago (17th ed.)

Manalo, Jose M. Towards Competence in English Grammar: Comprehensive and Comprehensible. Quezon City: Communications Upgrade, International Inc, 1995.

Cita MLA (9th ed.)

Manalo, Jose M. Towards Competence in English Grammar: Comprehensive and Comprehensible. Communications Upgrade, International Inc, 1995.