APA (7th ed.) Citation

Não informado. (1976). Key to economic science. Martinus Nijhoff.

Chicago Style (17th ed.) Citation

Não informado. Key to Economic Science. The Hague, Holanda: Martinus Nijhoff, 1976.

MLA (8th ed.) Citation

Não informado. Key to Economic Science. Martinus Nijhoff, 1976.

Warning: These citations may not always be 100% accurate.