Citazione Stile APA (7a Edizione)

Gertsch, R. E., & Bullock, R. L. (1998). Techniques in underground mining: Selections from underground mining methods handbook (1a. ed.). Society for Mining, Metallurgy, and Exploration, Inc.

Citazione stile Chigago Style (17a edizione)

Gertsch, Richard E., e Richard L. Bullock. Techniques in Underground Mining: Selections from Underground Mining Methods Handbook. 1a. ed. Littleton: Society for Mining, Metallurgy, and Exploration, Inc, 1998.

Citatione MLA (9a ed.)

Gertsch, Richard E., e Richard L. Bullock. Techniques in Underground Mining: Selections from Underground Mining Methods Handbook. 1a. ed. Society for Mining, Metallurgy, and Exploration, Inc, 1998.