BAY BOOKS SYDNEY. (1972). Encyclopedia of the animal world 3: Biological control-bull snakes. BAY books Sydney.
芝加哥风格引文BAY BOOKS SYDNEY. Encyclopedia of the Animal World 3: Biological Control-bull Snakes. Sydney: BAY books Sydney, 1972.
MLA引文BAY BOOKS SYDNEY. Encyclopedia of the Animal World 3: Biological Control-bull Snakes. BAY books Sydney, 1972.
警告：这些引文格式不一定是100％准确.