Cita APA

Humbert, F. L. (1968). Selection and wear of pebbles on gravel beaches.

Chicago Style (17th ed.) Citation

Humbert, Fekko Lucas. Selection and Wear of Pebbles on Gravel Beaches. [Groningen, 1968.

Cita MLA

Humbert, Fekko Lucas. Selection and Wear of Pebbles on Gravel Beaches. 1968.