APA

Obeng K., Benjamin J. & Addus A. (1986). An initial analysis of total factor productivity for public transit. : Transportation Research Record.

Chicago

Obeng Kofi, Benjamin Julian and Addus Abussalam. 1986. An initial analysis of total factor productivity for public transit. : Transportation Research Record.

Harvard

Obeng K., Benjamin J. and Addus A. (1986). An initial analysis of total factor productivity for public transit. : Transportation Research Record.

MLA

Obeng Kofi, Benjamin Julian and Addus Abussalam. An initial analysis of total factor productivity for public transit. : Transportation Research Record. 1986.