APA aipamena

Bell, F. G. (1978). Foundation engineering in difficult ground. Newnes-Butterworth.

Chicago Style aipamena

Bell, F. G. Foundation Engineering in Difficult Ground. London ; Boston: Newnes-Butterworth, 1978.

MLA aipamena

Bell, F. G. Foundation Engineering in Difficult Ground. Newnes-Butterworth, 1978.