APA

Verne J., Schwach H. J., . (1990). A Journey To The Center Of The Earth. New York: Baronet Books.

Chicago

Verne Jules, Schwach Howard J, . 1990. A Journey To The Center Of The Earth. New York: Baronet Books.

Harvard

Verne J., Schwach H. J., . (1990). A Journey To The Center Of The Earth. New York: Baronet Books.

MLA

Verne Jules, Schwach Howard J, . A Journey To The Center Of The Earth. New York: Baronet Books. 1990.