APA引文

(2006). Zappy 2 Teacher's Resource Kit. Porto Editora.

Chicago Style (17th ed.) Citation

Zappy 2 Teacher's Resource Kit. Porto Editora, 2006.

MLA引文

Zappy 2 Teacher's Resource Kit. Porto Editora, 2006.

警告：這些引文格式不一定是100％准確.