Gaya APA

Walker, H, P. (1966). The wagon masters. High plains freighting from the earliest days of Santa Fe Trail to 1880 (1966). : Norman : University Oklohama Press,.

Gaya MLA

Walker, Henry, Pickering. "The wagon masters. High plains freighting from the earliest days of Santa Fe Trail to 1880". 1966 : Norman : University Oklohama Press,, 1966. Text.