APA (7th ed.) Citation

De Beer, G. (1930). Early travellers in the Alps. Sidgwick and Jackson.

Chicago Style (17th ed.) Citation

De Beer, Gavin. Early Travellers in the Alps. Sidgwick and Jackson, 1930.

MLA (9th ed.) Citation

De Beer, Gavin. Early Travellers in the Alps. Sidgwick and Jackson, 1930.

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