APA (7th ed.) Citation

Fröman, N., & Fröman, P. O. (1996). The phase-integral method: Allowing nearlying transition points. Springer-Verlag.

Chicago Style (17th ed.) Citation

Fröman, Nanny, and Per Olof Fröman. The Phase-integral Method: Allowing Nearlying Transition Points. New York: Springer-Verlag, 1996.

MLA (9th ed.) Citation

Fröman, Nanny, and Per Olof Fröman. The Phase-integral Method: Allowing Nearlying Transition Points. Springer-Verlag, 1996.