On Triassic species of the genera Zamites and Pterophyllum
Subtitle: types of fronds belonging to the cycadophyta
By: by E.A. Newell Arber ; read 20 June, 1907.
Series: Landmarks of science II
Publisher: The Society
Published: 1978
Place of publication: London
Language: eng
Format: Microform
Number of pages: 127
Subjects: Cycads, Fossil.
Notes: Includes bibliographical references (p. 125-126).

Microfiche. New York, N.Y. Readex Microprint Corporation, [1985?] (Landmarks II)

In Transactions of the Linnean Society of London. Botany, ser. 2, v. 7 (1904-1913), p. 109-127.