APA

Aitken G., Berg R., . (1968). Digital solution of modified Berggren equation to calculate depths of freeze or thaw in multilayered systems. Hanover, NH: CRREL. Special report nr 122.

Chicago

Aitken GW, Berg RL, . 1968. Digital solution of modified Berggren equation to calculate depths of freeze or thaw in multilayered systems. Hanover, NH: CRREL. Special report nr 122.

Harvard

Aitken G., Berg R., . (1968). Digital solution of modified Berggren equation to calculate depths of freeze or thaw in multilayered systems. Hanover, NH: CRREL. Special report nr 122.

MLA

Aitken GW, Berg RL, . Digital solution of modified Berggren equation to calculate depths of freeze or thaw in multilayered systems. Hanover, NH: CRREL. Special report nr 122. 1968.