Citação norma APA

Singapore Book Publishers Association. Directory of members - Singapore Book Publishers Association. Singapore Book Publishers Association.

Citação norma Chicago

Singapore Book Publishers Association. Directory of Members - Singapore Book Publishers Association. [Singapore]: Singapore Book Publishers Association.

Citação norma MLA

Singapore Book Publishers Association. Directory of Members - Singapore Book Publishers Association. Singapore Book Publishers Association.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.