Vancouver Island and adjacent shores of British Columbia / surveyed by G.H. Richards, assisted by R.C. Mayne ... [et al.], 1859-65 ; compiled and drawn for engraving by E.J. Powell ; engraved by Davies & Powell.
MLA
Office, Great Britain. Hydrographic. Vancouver Island and Adjacent Shores of British Columbia / Surveyed by G.H. Richards, Assisted by R.C. Mayne ... [Et Al.], 1859-65 ; Compiled and Drawn for Engraving by E.J. Powell ; Engraved by Davies & Powell. The Admiralty, 0AD. https://collections.library.yale.edu/catalog/15536369.
APA, 6th edition
Office, G. B. H. (0 C.E.). Vancouver Island and adjacent shores of British Columbia / surveyed by G.H. Richards, assisted by R.C. Mayne ... [et al.], 1859-65 ; compiled and drawn for engraving by E.J. Powell ; engraved by Davies & Powell. [Maps]. The Admiralty, https://collections.library.yale.edu/catalog/15536369.
