Citazione Stile APA (7a Edizione)

Steijn, B. (1997). Training course on soillesless cultivation of vegetables. Novartis.

Citazione stile Chigago Style (17a edizione)

Steijn, Ben. Training Course on Soillesless Cultivation of Vegetables. Edimburgo: Novartis, 1997.

Citatione MLA (9a ed.)

Steijn, Ben. Training Course on Soillesless Cultivation of Vegetables. Novartis, 1997.