APA (7th ed.) Zitazioa

Kiehl, K., & Aamlid, T. S. (2014). Guidelines for native seed production and grassland restoration. Cambridge Scholars Publishing.

Chicago Style (17th ed.) Zitazioa

Kiehl, Kathrin, eta Trygve S. Aamlid. Guidelines for Native Seed Production and Grassland Restoration. Newcastle upon Tyne, England: Cambridge Scholars Publishing, 2014.

MLA (9th ed.) Zitazioa

Kiehl, Kathrin, eta Trygve S. Aamlid. Guidelines for Native Seed Production and Grassland Restoration. Cambridge Scholars Publishing, 2014.