Gaya APA

Purdie, R. S.. (1970). Transition curves and alignment geometry problems . : ARRB.

Gaya Chicago

Purdie, R. S.. Transition curves and alignment geometry problems. : ARRB, 1970. Computer Software.

Gaya MLA

Purdie, R. S.. Transition curves and alignment geometry problems. : ARRB, 1970. Computer Software.

Gaya Turabian

Purdie, R. S.. Transition curves and alignment geometry problems. : ARRB, 1970. Computer Software.