Παραπομπή σε μορφή APA (7η εκδ.)

Warren, H. W. (1879). Recreations in astronomy: With directions for practical experiments and telescopic work. Harper & Brothers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Warren, Henry White. Recreations in Astronomy: With Directions for Practical Experiments and Telescopic Work. New York: Harper & Brothers, 1879.

Παραπομπή σε μορφή MLA (8th εκδ.)

Warren, Henry White. Recreations in Astronomy: With Directions for Practical Experiments and Telescopic Work. Harper & Brothers, 1879.