APA (7th ed.) Citation

Parnell, G. E. (1978). A modified variational approach to scattering. Parnell.

Chicago Style (17th ed.) Citation

Parnell, G. E. A Modified Variational Approach to Scattering. [College Station, Tex.]: Parnell, 1978.

MLA (9th ed.) Citation

Parnell, G. E. A Modified Variational Approach to Scattering. Parnell, 1978.

Warning: These citations may not always be 100% accurate.