Gaya APA

Friend, Irwin.. (1977). Risk and return in finance volume I (1st). America: Ballinger Publishing Company.

Gaya Chicago

Friend, Irwin.. Risk and return in finance volume I. 1st America: Ballinger Publishing Company, 1977. Text.

Gaya MLA

Friend, Irwin.. Risk and return in finance volume I. 1st America: Ballinger Publishing Company, 1977. Text.

Gaya Turabian

Friend, Irwin.. Risk and return in finance volume I. 1st America: Ballinger Publishing Company, 1977. Print.