Dyfyniad APA

Jacobs, J. 1. (1969). The economy of cities. Random House.

Dyfyniad Arddull Chicago

Jacobs, Jane 1916. The Economy of Cities. New york: Random House, 1969.

Dyfyniad MLA

Jacobs, Jane 1916. The Economy of Cities. Random House, 1969.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.