APA (7th ed.) Citation

Hyer, J. W. (1948). Heavy-density separation: A review of its literature. [publisher not identified].

Chicago Style (17th ed.) Citation

Hyer, John W. Heavy-density Separation: A Review of Its Literature. Golden: [publisher not identified], 1948.

MLA (9th ed.) Citation

Hyer, John W. Heavy-density Separation: A Review of Its Literature. [publisher not identified], 1948.