APA (7th ed.) Citation

Jensen, D. L. (1988). The Spanish Armada: The worst-kept secret in Europe. The sixteenth century journal, 19(4), 621.

Chicago Style (17th ed.) Citation

Jensen, De Lamar. "The Spanish Armada: The Worst-kept Secret in Europe." The Sixteenth Century Journal 19, no. 4 (1988): 621.

MLA (9th ed.) Citation

Jensen, De Lamar. "The Spanish Armada: The Worst-kept Secret in Europe." The Sixteenth Century Journal, vol. 19, no. 4, 1988, p. 621.

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