APA (7th ed.) Citation

Keay, J., & Keay, J. (1994). Collins encyclopaedia of Scotland / edited by John Keay and Julia Keay. HarperCollins.

Chicago Style (17th ed.) Citation

Keay, John, and Julia Keay. Collins Encyclopaedia of Scotland / Edited by John Keay and Julia Keay. London: HarperCollins, 1994.

MLA (9th ed.) Citation

Keay, John, and Julia Keay. Collins Encyclopaedia of Scotland / Edited by John Keay and Julia Keay. HarperCollins, 1994.

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