APA (7th ed.) Citation

Lamb, N. J. (1964). Collins Portuguese gem dictionary: Portuguese-English, English-Portuguese. Collins.

Chicago Style (17th ed.) Citation

Lamb, N. J. Collins Portuguese Gem Dictionary: Portuguese-English, English-Portuguese. [London]: Collins, 1964.

MLA (9th ed.) Citation

Lamb, N. J. Collins Portuguese Gem Dictionary: Portuguese-English, English-Portuguese. Collins, 1964.

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