Cita APA (7a ed.)

SORREL,C.A. (1973). ROCKS AND MINERALS. GOLDEN PRESS.

Cita Chicago Style (17a ed.)

SORREL,C.A. ROCKS AND MINERALS. RACINE: GOLDEN PRESS, 1973.

Cita MLA (9a ed.)

SORREL,C.A. ROCKS AND MINERALS. GOLDEN PRESS, 1973.