APA (7th ed.) Citation

Obelholzer, M. A. (1989). Permanence in the Design of Skyscrapers.

Chicago Style (17th ed.) Citation

Obelholzer, Mark A. Permanence in the Design of Skyscrapers. 1989.

MLA (8th ed.) Citation

Obelholzer, Mark A. Permanence in the Design of Skyscrapers. 1989.

Warning: These citations may not always be 100% accurate.