Loran-C coverage diagram. Published at Washington, D.C. by the U.S. Nava Oceanographic Office under the authority of the Secretary of the Navy. Edition 2 - Aug. 1965. H.O. 15,308-1Loran-C coverage diagram

Chicago citation style
United States. Naval Oceanographic Office. Loran-C coverage diagram. Published at Washington, D.C. by the U.S. Nava Oceanographic Office under the authority of the Secretary of the Navy. Edition 2 - Aug. 1965. H.O. 15,308-1,Loran-C coverage diagram. 1968. Retrieved from the Digital Public Library of America, https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~292112~90063885. (Accessed December 10, 2018.)
APA citation style
United States. Naval Oceanographic Office, (1968) Loran-C coverage diagram. Published at Washington, D.C. by the U.S. Nava Oceanographic Office under the authority of the Secretary of the Navy. Edition 2 - Aug. 1965. H.O. 15,308-1,Loran-C coverage diagram. Retrieved from the Digital Public Library of America, https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~292112~90063885
MLA citation style
United States. Naval Oceanographic Office. Retrieved from the Digital Public Library of America <https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~292112~90063885>.
Note: These citations are programmatically generated and may be incomplete.