APA (7th ed.) Citation

ProQuest (Firm). (1897). Portland cement industry. [publisher not identified].

Chicago Style (17th ed.) Citation

ProQuest (Firm). Portland Cement Industry. Washington: [publisher not identified], 1897.

MLA (9th ed.) Citation

ProQuest (Firm). Portland Cement Industry. [publisher not identified], 1897.

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