APA
Gautam S. K., Aryal R. L., Poudel B. R. & Pandey Bhishma Raj. (2012). United chemistry; grade xii. Kathmandu: United Nepal Publication.
Chicago
Gautam Surendra Kumar, Aryal Ram Lochan, Poudel Bhoj Raj and Pandey Bhishma Raj. 2012. United chemistry; grade xii. Kathmandu: United Nepal Publication.
Harvard
Gautam S. K., Aryal R. L., Poudel B. R. and Pandey Bhishma Raj. (2012). United chemistry; grade xii. Kathmandu: United Nepal Publication.
MLA
Gautam Surendra Kumar, Aryal Ram Lochan, Poudel Bhoj Raj and Pandey Bhishma Raj. United chemistry; grade xii. Kathmandu: United Nepal Publication. 2012.