APA (7th ed.) Citation

Haanstra, U., & Spiker, E. (1935). Geologie von Ibiza(Baleares). Tip. Hostench.

Chicago Style (17th ed.) Citation

Haanstra, U., and E.Th.N Spiker. Geologie Von Ibiza(Baleares). [Barcelona]: Tip. Hostench, 1935.

MLA (9th ed.) Citation

Haanstra, U., and E.Th.N Spiker. Geologie Von Ibiza(Baleares). Tip. Hostench, 1935.

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