APA (7th ed.) Citation

International Symposium on Land Subsidence (4th : 1991 : Houston, Texas), & Johnson, A. I. (1991). Land subsidence: Proceedings of the Fourth International Symposium on Land Subsidence, held at Houston, Texas, 12-17 May 1991. International Association of Hydrological Sciences.

Chicago Style (17th ed.) Citation

International Symposium on Land Subsidence (4th : 1991 : Houston, Texas), and A. I. Johnson. Land Subsidence: Proceedings of the Fourth International Symposium on Land Subsidence, Held at Houston, Texas, 12-17 May 1991. [Wallingford, Oxfordshire: International Association of Hydrological Sciences, 1991.

MLA (9th ed.) Citation

International Symposium on Land Subsidence (4th : 1991 : Houston, Texas), and A. I. Johnson. Land Subsidence: Proceedings of the Fourth International Symposium on Land Subsidence, Held at Houston, Texas, 12-17 May 1991. International Association of Hydrological Sciences, 1991.