Cita APA (7th ed.)

Panlasigui, I. The language problems of the Philippines. [s.n.].

Cita Chicago (17th ed.)

Panlasigui, Isidoro. The Language Problems of the Philippines. Quezon City: [s.n.].

Cita MLA (9th ed.)

Panlasigui, Isidoro. The Language Problems of the Philippines. [s.n.].