Citazione Stile APA (7a Edizione)

Killorn, R. (2005). Soil P forms and P uptake P under intensive plant growth in the greenhouse. Universidad de Costa Rica.

Citazione stile Chigago Style (17a edizione)

Killorn, Randy. Soil P Forms and P Uptake P Under Intensive Plant Growth in the Greenhouse. Universidad de Costa Rica, 2005.

Citatione MLA (9a ed.)

Killorn, Randy. Soil P Forms and P Uptake P Under Intensive Plant Growth in the Greenhouse. Universidad de Costa Rica, 2005.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.