Cassell's Foundation Skills Series.
Trích dẫn kiểu ChicagoCassell's Foundation Skills Series.
MLA引文Cassell's Foundation Skills Series.
警告：这些引文格式不一定是100％准确.
APA引文
Cassell's Foundation Skills Series.
Trích dẫn kiểu ChicagoCassell's Foundation Skills Series.
MLA引文Cassell's Foundation Skills Series.