APA (7th ed.) Citation

Recorde, R. (1556). The castle of knowledge. Wolfe.

Chicago Style (17th ed.) Citation

Recorde, Robert. The Castle of Knowledge. London: Wolfe, 1556.

MLA (9th ed.) Citation

Recorde, Robert. The Castle of Knowledge. Wolfe, 1556.

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