APA引文

(1967). Speechcraft; a speech therapy workbook for any sound. Art work by William Silhan.

芝加哥风格引文

Speechcraft; a Speech Therapy Workbook for Any Sound. Art Work by William Silhan. 1967.

MLA引文

Speechcraft; a Speech Therapy Workbook for Any Sound. Art Work by William Silhan. 1967.

警告:这些引文格式不一定是100%准确.