APA (7th ed.) Citation

Snowdonia Park Joint Advisory Committee & Edwards, G. R. (1974). Snowdonia (2nd ed.). H.M.S.O..

Chicago Style (17th ed.) Citation

Snowdonia Park Joint Advisory Committee and G Rhys Edwards. Snowdonia. 2nd ed. London: H.M.S.O., 1974.

MLA (9th ed.) Citation

Snowdonia Park Joint Advisory Committee and G Rhys Edwards. Snowdonia. 2nd ed. H.M.S.O., 1974.

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