{"source":"book","style":"apa","contributors": [{"function":"author","last":"Lockley","first":"R","middle":"M"},{"function":"author","last":"Russell","first":"Rosemary"} ],"pubtype": {"main": "pubnonperiodical"},"pubnonperiodical": {"title":"Bird-ringing : the art of bird study by individual marking","publisher":"C. Lockwood & Son","city":"London","year":"1953"},"datasource":"/z-wcorg/","datasource":"http://www.worldcat.org","oclc":"2534720"}