APA (7th ed.) Citation

Gibson, J. E. (1968). The design of shell roofs (3. ed.). Spon.

Chicago Style (17th ed.) Citation

Gibson, John E. The Design of Shell Roofs. 3. ed. London: Spon, 1968.

MLA (9th ed.) Citation

Gibson, John E. The Design of Shell Roofs. 3. ed. Spon, 1968.