Ward, R. R. (1972). The living clocks. Collins.
芝加哥风格引文Ward, Ritchie R. The Living Clocks. London: Collins, 1972.
MLA引文Ward, Ritchie R. The Living Clocks. Collins, 1972.
警告：这些引文格式不一定是100％准确.
APA引文
Ward, R. R. (1972). The living clocks. Collins.
芝加哥风格引文Ward, Ritchie R. The Living Clocks. London: Collins, 1972.
MLA引文Ward, Ritchie R. The Living Clocks. Collins, 1972.