APA (7th ed.) Citation

South African Tunnelling Conference. (1970). The technology and potential of tunnelling: Papers presented at the South African Tunnelling Conference, 1970. Cygnet Print.

Chicago Style (17th ed.) Citation

South African Tunnelling Conference. The Technology and Potential of Tunnelling: Papers Presented at the South African Tunnelling Conference, 1970. Johannesburg: Cygnet Print, 1970.

MLA (8th ed.) Citation

South African Tunnelling Conference. The Technology and Potential of Tunnelling: Papers Presented at the South African Tunnelling Conference, 1970. Cygnet Print, 1970.