APA (7th ed.) Citation

Bok, E. W., & Haney, J. L. (1921). A Dutch boy fifty years after. C. Scribner's sons.

Chicago Style (17th ed.) Citation

Bok, Edward William, and John Louis Haney. A Dutch Boy Fifty Years After. New York, Chicago [etc.]: C. Scribner's sons, 1921.

MLA (9th ed.) Citation

Bok, Edward William, and John Louis Haney. A Dutch Boy Fifty Years After. C. Scribner's sons, 1921.