APA (7th ed.) Citation

Soto, C. C., & Soto, R. C. (1989). Integrated mathematics: First year. Pheonix.

Chicago Style (17th ed.) Citation

Soto, Cornelia C., and Reynald C. Soto. Integrated Mathematics: First Year. Quezon City: Pheonix, 1989.

MLA (9th ed.) Citation

Soto, Cornelia C., and Reynald C. Soto. Integrated Mathematics: First Year. Pheonix, 1989.