Citace podle APA

M.Pearl Richard. (1955). How to know the minerals and rocks (In lần thứ 1.). American: A Signet Book.

Styl Chicago

M.Pearl Richard. How to Know the Minerals and Rocks. In lần thứ 1. American: A Signet Book, 1955.

Citace podle MLA

M.Pearl Richard. How to Know the Minerals and Rocks. In lần thứ 1. American: A Signet Book, 1955.

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