Παραπομπή APA

Gerhardsen, G. . M. (1949). Salted cod and related species. Pretty.

Παραπομπή Chicago Style

Gerhardsen, G M. Salted Cod and Related Species. Washington: Pretty, 1949.

Παραπομπή MLA

Gerhardsen, G M. Salted Cod and Related Species. Pretty, 1949.