APA

Horn D. R., Horn B. M. & Delach M. N. (1973). Ocean manganese nodules metal values and mining sites. Washington: Office for the International Decade of Ocean Exploration National Science Foundation.

Chicago

Horn D R, Horn B M and Delach M N. 1973. Ocean manganese nodules metal values and mining sites. Washington: Office for the International Decade of Ocean Exploration National Science Foundation.

Harvard

Horn D. R., Horn B. M. and Delach M. N. (1973). Ocean manganese nodules metal values and mining sites. Washington: Office for the International Decade of Ocean Exploration National Science Foundation.

MLA

Horn D R, Horn B M and Delach M N. Ocean manganese nodules metal values and mining sites. Washington: Office for the International Decade of Ocean Exploration National Science Foundation. 1973.