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.