MLA

Vancouver, George, 1757-1798. A chart shewing part of the coast of N.W. America, with the tracks of His Majesty's sloop Discovery and armed tender Chatham / commanded by George Vancouver, esqr. and prepared under his immediate inspection by Lieut. Joseph Baker, in which the continenta. BRBL_00619. 1798. https://collections.library.yale.edu/catalog/15821552.

APA, 6th edition

Vancouver, George, 1757-1798. (["BRBL_00619"])(1798)[A chart shewing part of the coast of N.W. America, with the tracks of His Majesty's sloop Discovery and armed tender Chatham / commanded by George Vancouver, esqr. and prepared under his immediate inspection by Lieut. Joseph Baker, in which the continenta]. https://collections.library.yale.edu/catalog/15821552.