African Natural Plant ProductsJames Simon, Rodolfo Juliani, Lyle Craker · First published 2010Open the Tome
Herbs, Spices, and Medicinal PlantsLyle E. Craker · First published 1986 · Latest edition 2006Open the Tome
Development of a test-tube stress-ethylene bioassay for detecting phototoxic air pollutantsLyle E. Craker · First published 1982Open the Tome