Citazione Stile APA (7a Edizione)

Gapuz, V., Gapuz, V. P., & Lozada, C. D. (1990). The Economic crunch: How to cope and manage. V.P. Gapuz.

Citazione stile Chigago Style (17a edizione)

Gapuz, V.P, V. P. Gapuz, e C. D. Lozada. The Economic Crunch: How to Cope and Manage. [Valenzuela, Metro Manila]: V.P. Gapuz, 1990.

Citatione MLA (9a ed.)

Gapuz, V.P, et al. The Economic Crunch: How to Cope and Manage. V.P. Gapuz, 1990.