Which one is the correct APA style?
A.
Williams,J.H. (2008). Employee engagement: Improving participation in safety. Professional Safety, 53(12) , 40-45.
B.
Williams,J.H. (2008). Employee engagement: Improving participation in safety. Professional Safety, 53(12), 40-45.
C.
Williams,J.H. (2008). Employee engagement: Improving participation in safety . Professional Safety, 53(12) , 40-45.
D.
Williams,J.H. (2008). Employee engagement: Improving participation in safety . Professional Safety, 53(12), 40-45.