Gaya APA

Donald, C. (1987). The new illustrated science and invention encyclopedia : Volume 10 hydroponic lawn mower . Westport, Conn.: H.S. Stuttman Inc.

Gaya MLA

Donald, CLARKE.. "The new illustrated science and invention encyclopedia : Volume 10 hydroponic lawn mower". Westport, Conn.: H.S. Stuttman Inc, 1987. Text.