APA (7th ed.) Citation

Reif, F., & Larkin, J. H. (1976). Physically important integrals without calculus. American Journal of Physics, 44, 515.

Chicago Style (17th ed.) Citation

Reif, F., and J. H. Larkin. "Physically Important Integrals Without Calculus." American Journal of Physics 44 (1976): 515.

MLA (9th ed.) Citation

Reif, F., and J. H. Larkin. "Physically Important Integrals Without Calculus." American Journal of Physics, vol. 44, 1976, p. 515.