APA

Parker E. W., . (1914). El briquetting in 1913. Washington, D.C: Government Printing Office.

Chicago

Parker Eduard W, . 1914. El briquetting in 1913. Washington, D.C: Government Printing Office.

Harvard

Parker E. W., . (1914). El briquetting in 1913. Washington, D.C: Government Printing Office.

MLA

Parker Eduard W, . El briquetting in 1913. Washington, D.C: Government Printing Office. 1914.