APA引文

Schmid, W. (1977). Hal leonard guitar method. Hal Leonard.

芝加哥风格引文

Schmid, Will. Hal Leonard Guitar Method. Milwaukee: Hal Leonard, 1977.

MLA引文

Schmid, Will. Hal Leonard Guitar Method. Hal Leonard, 1977.

警告：这些引文格式不一定是100％准确.