APA (7th ed.) Citation

STILLER, R. L., VOLLMER, R. R., SHAFFER, R., & SMITH, E. H. (1980). Method for installing a tube in a heat exchanger tube sheet.

Chicago Style (17th ed.) Citation

STILLER, RICHARD L., REGIS R. VOLLMER, ROBERT SHAFFER, and EDWARD H. SMITH. Method for Installing a Tube in a Heat Exchanger Tube Sheet. 1980.

MLA (9th ed.) Citation

STILLER, RICHARD L., et al. Method for Installing a Tube in a Heat Exchanger Tube Sheet. 1980.