Dyfyniad APA

Fletcher, L. (1897). An introduction to the study of minerals: With a guide to the mineral gallery. London: Printed by order of the Trustees.

Dyfyniad Arddull Chicago

Fletcher, Lazarus. An Introduction to the Study of Minerals: With a Guide to the Mineral Gallery. London: Printed by order of the Trustees, 1897.

Dyfyniad MLA

Fletcher, Lazarus. An Introduction to the Study of Minerals: With a Guide to the Mineral Gallery. London: Printed by order of the Trustees, 1897.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.