Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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