APA

Barwel I., . (1986). The design and manufacture of animal-drawn carts. London: Intermediate Technology Publications.

Chicago

Barwel Ian, . 1986. The design and manufacture of animal-drawn carts. London: Intermediate Technology Publications.

Harvard

Barwel I., . (1986). The design and manufacture of animal-drawn carts. London: Intermediate Technology Publications.

MLA

Barwel Ian, . The design and manufacture of animal-drawn carts. London: Intermediate Technology Publications. 1986.