Cita APA (7a ed.)

Nordberg, H., Tooling, U., & Sandstrum, R. (1981). Swedish symposium on non-Metallic inclusions in steel (1a ed.). [s.n.].

Cita Chicago Style (17a ed.)

Nordberg, Hans, U. Tooling, y R. Sandstrum. Swedish Symposium on Non-Metallic Inclusions in Steel. 1a ed. Sweden: [s.n.], 1981.

Cita MLA (9a ed.)

Nordberg, Hans, et al. Swedish Symposium on Non-Metallic Inclusions in Steel. 1a ed. [s.n.], 1981.