APA Edition Citation

Leach, H. (1975). The ship captain's medical guide (Ed.20.). Her Majesty's stationery office.

Chicago Edition Citation

Leach, Harry. The Ship Captain's Medical Guide. Ed.20. London: Her Majesty's stationery office, 1975.

MLA Edition Citation

Leach, Harry. The Ship Captain's Medical Guide. Ed.20. Her Majesty's stationery office, 1975.

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