APA (7th ed.) Citation

Steinbeck, J., & Ordorika, R. (1988). Perla. Elkar.

Chicago Style (17th ed.) Citation

Steinbeck, John, and Ruper Ordorika. Perla. Donostia: Elkar, 1988.

MLA (9th ed.) Citation

Steinbeck, John, and Ruper Ordorika. Perla. Elkar, 1988.

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