APA (7th ed.) Citation

Hayen, R. L., & Callen, R. W. (1985). IFPS: An introduction. Reston Pub. Co.

Chicago Style (17th ed.) Citation

Hayen, Roger L., and Richard W. Callen. IFPS: An Introduction. Reston, Va: Reston Pub. Co, 1985.

MLA (9th ed.) Citation

Hayen, Roger L., and Richard W. Callen. IFPS: An Introduction. Reston Pub. Co, 1985.