Gaya APA

Elaine B.Johnson,Ph.D. (2011). CTL . : .

Gaya Chicago

Elaine B.Johnson,Ph.D. CTL. : , 2011. Text.

Gaya MLA

Elaine B.Johnson,Ph.D. CTL. : , 2011. Text.

Gaya Turabian

Elaine B.Johnson,Ph.D. CTL. : , 2011. Print.