APA
Saunders H. N., . (1971). The astrolabe: a brief account of its history and construction together with practical instructions showing how it was used and can still be used for solving many astronomical problems. Bude: H N Saunders.
Chicago
Saunders Harold Nicholas, . 1971. The astrolabe: a brief account of its history and construction together with practical instructions showing how it was used and can still be used for solving many astronomical problems. Bude: H N Saunders.
Harvard
Saunders H. N., . (1971). The astrolabe: a brief account of its history and construction together with practical instructions showing how it was used and can still be used for solving many astronomical problems. Bude: H N Saunders.
MLA
Saunders Harold Nicholas, . The astrolabe: a brief account of its history and construction together with practical instructions showing how it was used and can still be used for solving many astronomical problems. Bude: H N Saunders. 1971.