APA

Bienert W., Pravda M., Suelau H. & Wolf D. (1974). Snow and ice removal from pavements using stored earth energy. Cockeysville, MD: Dynatherm Corp. Report nr 0018.

Chicago

Bienert WB, Pravda MF, Suelau HJ and Wolf DA. 1974. Snow and ice removal from pavements using stored earth energy. Cockeysville, MD: Dynatherm Corp. Report nr 0018.

Harvard

Bienert W., Pravda M., Suelau H. and Wolf D. (1974). Snow and ice removal from pavements using stored earth energy. Cockeysville, MD: Dynatherm Corp. Report nr 0018.

MLA

Bienert WB, Pravda MF, Suelau HJ and Wolf DA. Snow and ice removal from pavements using stored earth energy. Cockeysville, MD: Dynatherm Corp. Report nr 0018. 1974.