APA (7th ed.) Citation

Nicoletti, M. G. (1970). The helicoidal skyscraper.

Chicago Style (17th ed.) Citation

Nicoletti, Manfredi G. The Helicoidal Skyscraper. 1970.

MLA (9th ed.) Citation

Nicoletti, Manfredi G. The Helicoidal Skyscraper. 1970.

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