APA Alıntı

Venugopal, P. K. George Stephenson, Henry Ford, Wright Brothers.

Chicago Stili Alıntı

Venugopal, P K. George Stephenson, Henry Ford, Wright Brothers. Kottayam, Kairali Children's Book Trust.

MLA Alıntı

Venugopal, P K. George Stephenson, Henry Ford, Wright Brothers.