APA (7th ed.) Citation

Hille, E., & Phillips, R. S. (1957). Functional analysis and semi-groups. Colloquium Publications.

Chicago Style (17th ed.) Citation

Hille, Einar, and Ralph S. Phillips. Functional Analysis and Semi-groups. Providence: Colloquium Publications, 1957.

MLA (8th ed.) Citation

Hille, Einar, and Ralph S. Phillips. Functional Analysis and Semi-groups. Colloquium Publications, 1957.