L. Hawker

Medicinal and magical plants of southern Africa: an annotated checklist.

M. Tomalin, N. Crouch, T. H. Arnold, 2002 .

Weathering Sequence and Alteration Products in the Genesis of the Graskop Manganese Residua, Republic of South Africa

L. Hawker, James G. Thompson, 1988 .

A slope sequence of Podzols in the southern Cape, South Africa 1. Physical and micromorphological properties

R. Fitzpatrick, T. H. V. Rooyen, L. Hawker, 1992 .

The composition and structure of reverse osmosis foulant deposits formed from rand water board water: A preliminary investigation

L. Hawker, J. Leger, 1987 .

WEATHERING SEQUENCE A N D ALTERATION PRODUCTS IN THE GENESIS OF THE GRASKOP MANGANESE RESIDUA , REPUBLIC OF SOUTH AFRICA

L. Hawker, James G. Thompson, 2006 .