APA (7th ed.) Citation

Natanson, I. P., Obolensky, A. N., & Schulenberger, J. R. (1964). Constructive function theory. Frederick Ungar.

Chicago Style (17th ed.) Citation

Natanson, I. P., Alexis N. Obolensky, and John R. Schulenberger. Constructive Function Theory. New York: Frederick Ungar, 1964.

MLA (8th ed.) Citation

Natanson, I. P., et al. Constructive Function Theory. Frederick Ungar, 1964.