Leeds, Eng. University, Dept. of Civil Engineering, Derelict Land Symposium, Leeds, Eng., 1969, & Collins, W. G. (1970). Proceedings of the Derelict Land Symposium, Leeds, 25 and 26 September 1969. Iliffe Science and Technology Pub.
Chicago-viite (17. p.)Leeds, Eng. University, Dept. of Civil Engineering, Leeds Derelict Land Symposium, ja Wilkie Gordon Collins. Proceedings of the Derelict Land Symposium, Leeds, 25 and 26 September 1969. London: Iliffe Science and Technology Pub, 1970.
MLA-viite (9. p.)Leeds, Eng. University, et al. Proceedings of the Derelict Land Symposium, Leeds, 25 and 26 September 1969. Iliffe Science and Technology Pub, 1970.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.