How to write a proper citation.
Step 1: I think you should first find the information that you will be citing.
step 2: Get the information and put it in your writing.
Step 3: After your information put the authors last name in parenthesis.
Heres an example:
"A panda reaches 59 inches in length from nose to rump, and weighs about 220 -331 pounds(Bryner)."