APA Style

Cussler, C., Cussler, D. (2019). Celtic Empire (Dirk Pitt Adventure Book 25) . New York: G.P. Putnam\'s Sons.

MLA Style

Cussler, Clive., Cussler, Dirk. "Celtic Empire (Dirk Pitt Adventure Book 25)". New York: G.P. Putnam\'s Sons, 2019. Perpustakaan KALBIS.