Citazione Stile APA (7a Edizione)

Billingsley, R. S., & Gitman, L. J. J. (2021). Personal Financial Planning (15th.). Cengage Learning.

Citazione stile Chigago Style (17a edizione)

Billingsley, Randall S., e Lawrence J. Joehnk Gitman. Personal Financial Planning. 15th. Delhi: Cengage Learning, 2021.

Citatione MLA (9a ed.)

Billingsley, Randall S., e Lawrence J. Joehnk Gitman. Personal Financial Planning. 15th. Cengage Learning, 2021.