APA (7th ed.) Citation

Gibson, R. A. (1928). 1927 imports of box shooks into Canary Islands. [publisher not identified].

Chicago Style (17th ed.) Citation

Gibson, Raleigh A. 1927 Imports of Box Shooks into Canary Islands. Washington, D.C.: [publisher not identified], 1928.

MLA (9th ed.) Citation

Gibson, Raleigh A. 1927 Imports of Box Shooks into Canary Islands. [publisher not identified], 1928.