APA

Freeme C., . (1978). Applications of ultrasonic test methods to the determination of elastic moduli of pavement materials. Pretoria: National Institute for Transport and Road Research. RR no 242.

Chicago

Freeme CR, . 1978. Applications of ultrasonic test methods to the determination of elastic moduli of pavement materials. Pretoria: National Institute for Transport and Road Research. RR no 242.

Harvard

Freeme C., . (1978). Applications of ultrasonic test methods to the determination of elastic moduli of pavement materials. Pretoria: National Institute for Transport and Road Research. RR no 242.

MLA

Freeme CR, . Applications of ultrasonic test methods to the determination of elastic moduli of pavement materials. Pretoria: National Institute for Transport and Road Research. RR no 242. 1978.