APA (7th ed.) Citation

Keay, J., & Keay, J. (1994). Collins encyclopaedia of Scotland. HarperCollins.

Chicago Style (17th ed.) Citation

Keay, John, and Julia Keay. Collins Encyclopaedia of Scotland. Hammersmith, London: HarperCollins, 1994.

MLA (9th ed.) Citation

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

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