APA

Brockett B., Lawson D., . (1985). Prototype drill for core sampling fine-grained perennially frozen ground. Hanover, NH: Cold Regions Research & Engineering Laboratory. CRREL report 1985:1.

Chicago

Brockett BE, Lawson DE, . 1985. Prototype drill for core sampling fine-grained perennially frozen ground. Hanover, NH: Cold Regions Research & Engineering Laboratory. CRREL report 1985:1.

Harvard

Brockett B., Lawson D., . (1985). Prototype drill for core sampling fine-grained perennially frozen ground. Hanover, NH: Cold Regions Research & Engineering Laboratory. CRREL report 1985:1.

MLA

Brockett BE, Lawson DE, . Prototype drill for core sampling fine-grained perennially frozen ground. Hanover, NH: Cold Regions Research & Engineering Laboratory. CRREL report 1985:1. 1985.