Gaya APA

Creenhill, B., Manning, S. (). The Schooner Bertha L. Downs: Anatomy o fthe ship (Cet 1). : Conway Maritime Press.

Gaya MLA

Creenhill, Bod., Manning, Sam. "The Schooner Bertha L. Downs: Anatomy o fthe ship". Cet 1 : Conway Maritime Press, . Electronic Resource.