Citazione Stile APA (7a Edizione)

Ulgado, A. V., Cuadro, R. O., & Barcelona, D. R. (1985). The human helping process. Maryknoll College Foundation, Inc.

Citazione stile Chigago Style (17a edizione)

Ulgado, Antonio V., Raquel O. Cuadro, e Delia R. Barcelona. The Human Helping Process. Quezon City: Maryknoll College Foundation, Inc, 1985.

Citatione MLA (9a ed.)

Ulgado, Antonio V., et al. The Human Helping Process. Maryknoll College Foundation, Inc, 1985.