APA (7th ed.) Citation

Wilby, C. B., & Khwaja, I. (1977). Concrete shell roofs. Applied Science Publ.

Chicago Style (17th ed.) Citation

Wilby, Charles B., and I. Khwaja. Concrete Shell Roofs. London: Applied Science Publ, 1977.

MLA (9th ed.) Citation

Wilby, Charles B., and I. Khwaja. Concrete Shell Roofs. Applied Science Publ, 1977.

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