APA

Rowan N., Walton N., . (1970). Engineering aspects of rail-highway grade crossing safety evaluation. College Station, TX: Texas A&M University. Texas Transportation Institute. Research report nr 111-3[F].

Chicago

Rowan NJ, Walton NE, . 1970. Engineering aspects of rail-highway grade crossing safety evaluation. College Station, TX: Texas A&M University. Texas Transportation Institute. Research report nr 111-3[F].

Harvard

Rowan N., Walton N., . (1970). Engineering aspects of rail-highway grade crossing safety evaluation. College Station, TX: Texas A&M University. Texas Transportation Institute. Research report nr 111-3[F].

MLA

Rowan NJ, Walton NE, . Engineering aspects of rail-highway grade crossing safety evaluation. College Station, TX: Texas A&M University. Texas Transportation Institute. Research report nr 111-3[F]. 1970.