Gaya APA

Shunway, G., Frey, H, C. (1968). Conestoga wagon 1750 1850 (1968). : Pennsylvania : George Shumway Publisher,.

Gaya MLA

Shunway, George., Frey, Howard, C. "Conestoga wagon 1750 1850". 1968 : Pennsylvania : George Shumway Publisher,, 1968. Text.