APA (7th ed.) Citation

Spiker, E. T. N. (1935). Geologie von West-Ibiza (Balearen).

Chicago Style (17th ed.) Citation

Spiker, Ewald Thomas Nicolaas. Geologie Von West-Ibiza (Balearen). [Utrecht, 1935.

MLA (8th ed.) Citation

Spiker, Ewald Thomas Nicolaas. Geologie Von West-Ibiza (Balearen). 1935.

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