Randall Billingsley & Lawaence Gitman, M. J. (2021). Personal Financial Planning (14th ed.). Cengage.
Lua i Stíl Chicago (17ú heag.)Randall Billingsley agus Michael Joehnk Lawaence Gitman. Personal Financial Planning. 14th ed. Boston: Cengage, 2021.
Lua MLA (9ú heag.)Randall Billingsley agus Michael Joehnk Lawaence Gitman. Personal Financial Planning. 14th ed. Cengage, 2021.
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