APA (7th ed.) Citation

Emerson, H. (1976). The twelve principles of efficiency. Hive Pub. Co.

Chicago Style (17th ed.) Citation

Emerson, H. The Twelve Principles of Efficiency. Easton, Pa: Hive Pub. Co, 1976.

MLA (9th ed.) Citation

Emerson, H. The Twelve Principles of Efficiency. Hive Pub. Co, 1976.

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