Παραπομπή σε μορφή APA (7η εκδ.)

Olmsted, D. (1841). Letters on astronomy: Addressed to a lady : in which the elements of the science are familiarly explained in connexion with its literary history : with numerous engravings. Marsh, Capen, Lyon, and Webb.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Olmsted, Denison. Letters on Astronomy: Addressed to a Lady : In Which the Elements of the Science Are Familiarly Explained in Connexion with Its Literary History : With Numerous Engravings. Boston: Marsh, Capen, Lyon, and Webb, 1841.

Παραπομπή σε μορφή MLA (8th εκδ.)

Olmsted, Denison. Letters on Astronomy: Addressed to a Lady : In Which the Elements of the Science Are Familiarly Explained in Connexion with Its Literary History : With Numerous Engravings. Marsh, Capen, Lyon, and Webb, 1841.