XI International Botanical Congress field trip number I, "Grand Canyon"
Subtitle: daily log and guide book
By: by William A. Weber and Beatrice Willard, co-leaders
Publisher: The Congress?
Published: 1969
Place of publication: Seattle?
Language: eng
Number of pages: 100
Subjects: Plants; Guidebooks
Other titles: Field trip number I, "Grand Canyon" :; "Grand Canyon" :; Daily log and guide book; 11th International Botanical Congress field trip number I, "Grand Canyon" :; Grand Canyon, daily log and guide book.
Notes: "August 1-23, 1969."

Includes bibliographical references.