APA (7e ed.) Bronvermelding

Não informado. (2009). Main Science and Technology Indicators. Organization for Economic Co-operation and Development.

Chicago (17e ed.) Bronvermelding

Não informado. Main Science and Technology Indicators. Paris: Organization for Economic Co-operation and Development, 2009.

MLA (8e ed.) Bronvermelding

Não informado. Main Science and Technology Indicators. Organization for Economic Co-operation and Development, 2009.

Let op: Deze citaties zijn niet altijd 100% accuraat.