Selected Paphio varieties plus new seedling introductions. List 174.

MLA

Selected Paphio Varieties Plus New Seedling Introductions. List 174. San Gabriel: Stewart Inc., .d.

APA

(.d). Selected Paphio varieties plus new seedling introductions. List 174. San Gabriel: Stewart Inc.

Chicago

Selected Paphio Varieties Plus New Seedling Introductions. List 174. San Gabriel: Stewart Inc., .d.