APA (7th ed.) Citation

Szechy, K., & Szechy, D. (1966). The art of tunnelling. Adademiami Kiado.

Chicago Style (17th ed.) Citation

Szechy, Karoly, and Denis Szechy. The Art of Tunnelling. Budapest: Adademiami Kiado, 1966.

MLA (9th ed.) Citation

Szechy, Karoly, and Denis Szechy. The Art of Tunnelling. Adademiami Kiado, 1966.