APA (7th ed.) Citation

National Training Laboratories, Washington, DC, & National Training Laboratories. (1958). Research training series. NTL.

Chicago Style (17th ed.) Citation

National Training Laboratories, Washington, DC, and National Training Laboratories. Research Training Series. Washington, D.C: NTL, 1958.

MLA (8th ed.) Citation

National Training Laboratories, Washington, DC, and National Training Laboratories. Research Training Series. NTL, 1958.