APA (7th ed.) Citation

Aetna Portland Cement Co & Dibble, G. O. (1932). Clay mining methods and costs at Corunna (Mich.) pit of Aetna Portland Cement Company. [publisher not identified].

Chicago Style (17th ed.) Citation

Aetna Portland Cement Co and George O. Dibble. Clay Mining Methods and Costs at Corunna (Mich.) Pit of Aetna Portland Cement Company. Washington, D.C.: [publisher not identified], 1932.

MLA (9th ed.) Citation

Aetna Portland Cement Co and George O. Dibble. Clay Mining Methods and Costs at Corunna (Mich.) Pit of Aetna Portland Cement Company. [publisher not identified], 1932.