Citazione Stile APA (7a Edizione)

Boehmer, G. H. (1893). Prehistoric naval architecture of the North of Europe. Government Printing Office].

Citazione stile Chigago Style (17a edizione)

Boehmer, George Hans. Prehistoric Naval Architecture of the North of Europe. [Washington: Government Printing Office], 1893.

Citatione MLA (9a ed.)

Boehmer, George Hans. Prehistoric Naval Architecture of the North of Europe. Government Printing Office], 1893.