APA استشهاد

Brown, S. B. (1972). Realm of science ( 21 Vols.): :vol.19 the continuum of life: structure classification and evolution. Touchstone.

استشهاد بنمط شيكاغو

Brown, Stanley. B. Realm of Science ( 21 Vols.): :vol.19 the Continuum of Life: Structure Classification and Evolution. USA: Touchstone, 1972.

MLA استشهاد

Brown, Stanley. B. Realm of Science ( 21 Vols.): :vol.19 the Continuum of Life: Structure Classification and Evolution. Touchstone, 1972.