APA (7th ed.) Citation

Lanczos, C. (1961). Linear differential operators. Van Nostrand.

Chicago Style (17th ed.) Citation

Lanczos, Cornelius. Linear Differential Operators. London: Van Nostrand, 1961.

MLA (9th ed.) Citation

Lanczos, Cornelius. Linear Differential Operators. Van Nostrand, 1961.