Mineral industries of Porto Rico.
Contributors: Willoughby, William F. b. 1867; United States. Bureau of the Census
Series: Bulletin / Bureau of the Census -- 6; Bulletin (United States. Bureau of the Census) -- 6.
Publisher: Govt. Print. Off.
Published: 1904
Place of publication: Washington
Language: eng
Number of pages: 18
Subjects: Mines and mineral resources -- Puerto Rico.; Mineral industries -- Puerto Rico.
Notes: At head of title: Department of Commerce and Labor. Bureau of the Census. S. N. D. North, director.

Prepared by William F. Willoughby, Treasurer of Porto Pico. cf. p. 3.

Letter of transmittal signed: W. M. Steuart, Chief Statistician for Manufactures.

With: Geographical distribution of population -- Washington : Government Printing Office, 1903.