Ward, B. The adventure of Drum. Alternate Publishing.
Chicago-Zitierstil (17. Ausg.)Ward, Bill. The Adventure of Drum. San Francisco: Alternate Publishing.
MLA-Zitierstil (8. Ausg.)Ward, Bill. The Adventure of Drum. Alternate Publishing.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.