APA (7th ed.) Citation

Walford, N. S. (2002). Geographical data : a guide to secondary sources / N.S. Walford: A guide to secondary sources. Wiley.

Chicago Style (17th ed.) Citation

Walford, N. S. Geographical Data : A Guide to Secondary Sources / N.S. Walford: A Guide to Secondary Sources. Chichester: Wiley, 2002.

MLA (9th ed.) Citation

Walford, N. S. Geographical Data : A Guide to Secondary Sources / N.S. Walford: A Guide to Secondary Sources. Wiley, 2002.

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