Livres de C. A. Roper

In-Breeding: What it is and What it Does - A Treatise of the Greatest Value to Breeders of all Kinds of Farm and Fancy Stock

Fields, Farms and Colonists

Figures in a Renaissance Context

The Complete Book of Locks and Locksmithing

Locks and Lock-Smithing

Report on Visit to Campbell Island

THE COMPLETE BOOK OF LOCKS AND LOCKSMITHING. 2D ED.

Report on Visit to Campbell Island in April 1983

The Apocalypse in English Renaissance Thought and Literature

Report on a Visit to Ionospheric Prediction Service Operators' Conference, Sydney, Australia, 24-26 May 1978