APA
Nalwa H.S, . (2004). Encyclopedia of nanoscience and nanotechnology Vol.20. : American scientific publishers, Califormia.
Chicago
Nalwa H.S, . 2004. Encyclopedia of nanoscience and nanotechnology Vol.20. : American scientific publishers, Califormia.
Harvard
Nalwa H.S, . (2004). Encyclopedia of nanoscience and nanotechnology Vol.20. : American scientific publishers, Califormia.
MLA
Nalwa H.S, . Encyclopedia of nanoscience and nanotechnology Vol.20. : American scientific publishers, Califormia. 2004.