APA (7th ed.) Citation

Smith, B. M. (1978). Conserving energy in historic buildings. National Park Service, Technical Preservation Services.

Chicago Style (17th ed.) Citation

Smith, Baird M. Conserving Energy in Historic Buildings. Washington, D.C.: National Park Service, Technical Preservation Services, 1978.

MLA (9th ed.) Citation

Smith, Baird M. Conserving Energy in Historic Buildings. National Park Service, Technical Preservation Services, 1978.

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