APA (7th ed.) Citation

Farber, W. M. (1983). Business letters, simplified and self-taught. National Book Store.

Chicago Style (17th ed.) Citation

Farber, William M. Business Letters, Simplified and Self-taught. Manila: National Book Store, 1983.

MLA (9th ed.) Citation

Farber, William M. Business Letters, Simplified and Self-taught. National Book Store, 1983.