Asa Gray

New York: Atheneum 1968.

Asa Gray.                                        

Legare Street Press

Asa Gray: His Life and Work                      

Asa Gray: American Botanist, Friend of Darwin (Paperback) - Common

The Gray: Asa's Awakening (English Edition)      

Martin Case

Asa Gray Garden                                  

The Perfect Library

Works of Asa Gray (English Edition)              

HardPress

Letters of Asa Gray (English Edition)            

Lettel Books

Letters of Asa Gray; Vol. 2                      

Antigonos Verlag

Gray's School and Field Book of Botany: Vol. 1  

Legare Street Press

Asa Gray Correspondence: Official Correspondence, and Correspondence of Jane Gray, 1838-1895 (inclusive)