APA (7th ed.) Citation

Widder, D. V. (1975). The heat equation. Acad. Pr.

Chicago Style (17th ed.) Citation

Widder, David V. The Heat Equation. New York <<[u.a.]>>: Acad. Pr, 1975.

MLA (9th ed.) Citation

Widder, David V. The Heat Equation. Acad. Pr, 1975.