APA (7th ed.) Citation

Kreh, R. S. (1979). Safety for masons. Delmar Publ.

Chicago Style (17th ed.) Citation

Kreh, Richard SR. Safety for Masons. Delmar Publ, 1979.

MLA (8th ed.) Citation

Kreh, Richard SR. Safety for Masons. Delmar Publ, 1979.

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