Gaya APA
Gregory, P., J. (2006).
Plant roots: growth, activity and interaction with soils .
(4) Organisasi Perusahaan: Teo:
Yusof Ishak Institute.
Gaya MLA
Gregory, P., J..
Plant roots: growth, activity and interaction with soils.
(4) Organisasi Perusahaan: Teo:
Yusof Ishak Institute,
2006.
Text.