Plants of Kwangtung Province, China, and their Chinese names /

by Groff, George Weidman, 1884-1954
Washington, D.C. : photographed in the Office of Crop Physiology and Breeding Investigations, United States Dept. of Agriculture, 1921

Preliminary draft of a Chinese index to the botanical names of Kwangtung plants /

by Groff, George Weidman, 1884-1954
[Place of publication not identified] : [publisher not identified], 1919

Chinese names (in characters) of Kwangtung plants /

by Groff, George Weidman, 1884-1954
[Place of publication not identified] : [publisher not identified], 1919

Cantonese names (romanized and in characters) of Kwangtung plants /

by Groff, George Weidman, 1884-1954
[Place of publication not identified] : [publisher not identified], 1919

Revised index to botanical names of Kwang Tong [sic] plants.

by Groff, George Weidman, 1884-1954
[Place of publication not identified] : [publisher not identified], 1921

Plants of Kwangtung Province, China, and their Chinese names : (in three parts.) /

by Groff, George Weidman, 1884-1954
Washington, D.C. : photographed in the Office of Crop Physiology and Breeding Investigations, United States Dept. of Agriculture, 1921

Revised index, botanical names of Kwangtung prants [sic].

by Groff, George Weidman, 1884-1954
[Place of publication not identified] : [publisher not identified], 1920

Summary report on investigations in Kwangtung, 1918 /

by Groff, George Weidman, 1884-1954
[Place of publication not identified] : [publisher not identified], 1918