%0 Generic %A Riou, Edward, %T Russia: Kamchatka: Petropavlovsk-Kamchatsky and vicinity, 'A Plan of the Bay of A'vatch'ka' : %U https://ezaccess.libraries.psu.edu/login?url=http://www.exploration.amdigital.co.uk/Documents/Details/TNA_ADM_352_304