APA aipamena

KRAUS,SLAWSON. (1969). GEMS & GEM MATERIALS. MCGRAW - HILL BOOK CO.

Chicago Style aipamena

KRAUS,SLAWSON. GEMS & GEM MATERIALS. NEW YORK: MCGRAW - HILL BOOK CO, 1969.

MLA aipamena

KRAUS,SLAWSON. GEMS & GEM MATERIALS. MCGRAW - HILL BOOK CO, 1969.