APA (7th ed.) Citation

O'Sullivan, D. (1984). The age of discovery: 1400 - 1550 (1. publ.). Longman.

Chicago Style (17th ed.) Citation

O'Sullivan, Dan. The Age of Discovery: 1400 - 1550. 1. publ. London u.a: Longman, 1984.

MLA (9th ed.) Citation

O'Sullivan, Dan. The Age of Discovery: 1400 - 1550. 1. publ. Longman, 1984.

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