APA

Collier R., . (1963). Highway legislation in 1963. : California Street and Highway Conference. 15. Los Angeles.

Chicago

Collier R, . 1963. Highway legislation in 1963. : California Street and Highway Conference. 15. Los Angeles.

Harvard

Collier R., . (1963). Highway legislation in 1963. : California Street and Highway Conference. 15. Los Angeles.

MLA

Collier R, . Highway legislation in 1963. : California Street and Highway Conference. 15. Los Angeles. 1963.