Billingsley, R. S., & Gitman, L. J. J. (2021). Personal Financial Planning (15th.). Cengage Learning.
芝加哥风格引文Billingsley, Randall S., 与 Lawrence J. Joehnk Gitman. Personal Financial Planning. 15th. Delhi: Cengage Learning, 2021.
MLA引文Billingsley, Randall S., 与 Lawrence J. Joehnk Gitman. Personal Financial Planning. 15th. Cengage Learning, 2021.
警告：这些引文格式不一定是100％准确.