Howard, L. (1956). Living with birds. Collins.
芝加哥风格引文Howard, Len. Living with Birds. London: Collins, 1956.
MLA引文Howard, Len. Living with Birds. Collins, 1956.
警告：这些引文格式不一定是100％准确.
APA引文
Howard, L. (1956). Living with birds. Collins.
芝加哥风格引文Howard, Len. Living with Birds. London: Collins, 1956.
MLA引文Howard, Len. Living with Birds. Collins, 1956.