APA (7th ed.) Citation

(1954). Snowdonia (2. ed.). Majesty's stationery office.

Chicago Style (17th ed.) Citation

Snowdonia. 2. ed. London: Majesty's stationery office, 1954.

MLA (9th ed.) Citation

Snowdonia. 2. ed. Majesty's stationery office, 1954.

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