Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (8a ed.)

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