Check list of the forest trees of the United States :
their names and ranges.

APA Citation

Sudworth, G. B. (George Bishop). (1927). Check list of the forest trees of the United States: their names and ranges. [Washington]: Govt. Print. Off.

MLA Citation

Sudworth, George B. (George Bishop), 1864-1927. Check List of the Forest Trees of the United States: Their Names And Ranges. [Washington]: Govt. Print. Off, 1927.

Warning: These citations may not always be complete (especially for serials).