APA استشهاد

Brown, S. B. (1971). Realm of science: Directions and dimensions of life.V. 20. Touch Stone Publishing.

استشهاد بنمط شيكاغو

Brown, S B. Realm of Science: Directions and Dimensions of Life.V. 20. USA: Touch Stone Publishing, 1971.

MLA استشهاد

Brown, S B. Realm of Science: Directions and Dimensions of Life.V. 20. Touch Stone Publishing, 1971.