APA (7th ed.) Citation

Knecht, J. F. (1992). The effects of excercise [as printed] on the strength of the low back. [publisher not identified].

Chicago Style (17th ed.) Citation

Knecht, John Frederick. The Effects of Excercise [as Printed] on the Strength of the Low Back. [Place of publication not identified]: [publisher not identified], 1992.

MLA (9th ed.) Citation

Knecht, John Frederick. The Effects of Excercise [as Printed] on the Strength of the Low Back. [publisher not identified], 1992.