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