The first resource : wild species in the North American economy /

by Prescott Allen, Christine 1949-
Published 1986

What's wildlife worth? : economic contributions of wild plants and animals to developing countries /

by Prescott Allen, Robert, Prescott Allen, Robert, Prescott Allen, Christine
Published 1982

Genes from the wild : using wild genetic resources for food and raw materials /

by Prescott Allen, Robert
Published 1983

Cuanto vale la vida silvestre? /

by Prescott-Allen, Robert
Published 1982

Assessing the sustainability of uses of wild species : case studies and initial assessment procedure /

Published 1996