APA-viite

Doeacc society. (1997). Quanbook 'O' level: Model questions - all modules.

Chicago-tyylinen lähdeviittaus

Doeacc society. Quanbook 'O' Level: Model Questions - All Modules. BPB Publications, New Delhi, 1997.

MLA-viite

Doeacc society. Quanbook 'O' Level: Model Questions - All Modules. 1997.