APA (7th ed.) Citation

A. Colish (Firm), Leach, M., & Kredel, F. (1967). The book of ballads. Limited Editions Club.

Chicago Style (17th ed.) Citation

A. Colish (Firm), MacEdward Leach, and Fritz Kredel. The Book of Ballads. [New York]: Limited Editions Club, 1967.

MLA (9th ed.) Citation

A. Colish (Firm), et al. The Book of Ballads. Limited Editions Club, 1967.