APA (7th ed.) Citation

Berngen, F. E. (1968). An investigation of adaptability to physical and mental stress utilizing heart rate analysis. [publisher not identified].

Chicago Style (17th ed.) Citation

Berngen, Frank Edmund. An Investigation of Adaptability to Physical and Mental Stress Utilizing Heart Rate Analysis. [College Station, Tex.]: [publisher not identified], 1968.

MLA (9th ed.) Citation

Berngen, Frank Edmund. An Investigation of Adaptability to Physical and Mental Stress Utilizing Heart Rate Analysis. [publisher not identified], 1968.