Gaya APA

Heerwagen, P, D. (1988). Investing for total return: the low-risk, high-return approach to investing for income and capital appreciation . Chicago: Probus Publishing Company.

Gaya MLA

Heerwagen, Peter, D.. "Investing for total return: the low-risk, high-return approach to investing for income and capital appreciation". Chicago: Probus Publishing Company, 1988. Text.