APA (7th ed.) Citation

Eckel, E. C. (1913). Portland cement materials and industry in the United States. US Gov. Print. Off.

Chicago Style (17th ed.) Citation

Eckel, Edwin C. Portland Cement Materials and Industry in the United States. Washington, DC: US Gov. Print. Off, 1913.

MLA (9th ed.) Citation

Eckel, Edwin C. Portland Cement Materials and Industry in the United States. US Gov. Print. Off, 1913.