APA (7th ed.) Citation

Não informado. (1970). Copper Abstracts. Copper Development Association.

Chicago Style (17th ed.) Citation

Não informado. Copper Abstracts. London: Copper Development Association, 1970.

MLA (8th ed.) Citation

Não informado. Copper Abstracts. Copper Development Association, 1970.

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