{"source":"book","style":"apa","contributors": [{"function":"author","last":"Riddle","first":"Edward"} ],"pubtype": {"main": "pubnonperiodical"},"pubnonperiodical": {"title":"A treatise on navigation, and nautical astronomy : adapted to practice, and to the purposes of elementary instruction ; containing the elementary principles of algebra, geometry, plane and spherical trigonometry, and navigation ...","publisher":"Baldwin, Cradock, and Joy","city":"London","year":"1824"},"datasource":"/z-wcorg/","datasource":"http://www.worldcat.org","oclc":"30530047"}