APA
Singh l., . (2009). Std Vi Science. India: Axiom eduction.
Chicago
Singh lakhmir, . 2009. Std Vi Science. India: Axiom eduction.
Harvard
Singh l., . (2009). Std Vi Science. India: Axiom eduction.
MLA
Singh lakhmir, . Std Vi Science. India: Axiom eduction. 2009.