APA استشهاد

Herubin, C. (1978). Principles of surveying (2.). Reston publishers.

استشهاد بنمط شيكاغو

Herubin, C.A. Principles of Surveying. 2. Virginia: Reston publishers, 1978.

MLA استشهاد

Herubin, C.A. Principles of Surveying. 2. Reston publishers, 1978.