Higbee, E. (1970). A question of priorities: New strategies for our urbanized world. William Morrow.
Lua i Stíl Chicago (17ú heag.)Higbee, Edward. A Question of Priorities: New Strategies for Our Urbanized World. New York: William Morrow, 1970.
Lua MLA (9ú heag.)Higbee, Edward. A Question of Priorities: New Strategies for Our Urbanized World. William Morrow, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.