APA
Keith Solomon ; Lyn Solomon ; Dianne Solomon, .Times junior Science Encyclopedia. Singapur: Federal Publications.
Chicago
Keith Solomon ; Lyn Solomon ; Dianne Solomon, .Times junior Science Encyclopedia. Singapur: Federal Publications.
Harvard
Keith Solomon ; Lyn Solomon ; Dianne Solomon, .Times junior Science Encyclopedia. Singapur: Federal Publications.
MLA
Keith Solomon ; Lyn Solomon ; Dianne Solomon, .Singapur: Federal Publications. .
