APA (7th ed.) Citation

Szechy, K. (1973). The art of tunnelling (2d English ed. (rev. and enl.).). Akademiai Kiado.

Chicago Style (17th ed.) Citation

Szechy, Karoly. The Art of Tunnelling. 2d English ed. (rev. and enl.). Budapest: Akademiai Kiado, 1973.

MLA (9th ed.) Citation

Szechy, Karoly. The Art of Tunnelling. 2d English ed. (rev. and enl.). Akademiai Kiado, 1973.