Gaya APA

(SBPA), S, B, P, A. (2008). Singapore Book Publishers Association: Directory of Members 2008/09 . Singapore: Singapore Book Publishers Association (SBPA).

Gaya MLA

(SBPA), Singapore, Book, Publishers, Association. "Singapore Book Publishers Association: Directory of Members 2008/09". Singapore: Singapore Book Publishers Association (SBPA), 2008. Book.