Cita APA (7th ed.)

Butler, I. S. (1971). Relevant Problems for chemical principles. W.A. Benjamin.

Cita Chicago (17th ed.)

Butler, Ian S. Relevant Problems for Chemical Principles. California: W.A. Benjamin, 1971.

Cita MLA (9th ed.)

Butler, Ian S. Relevant Problems for Chemical Principles. W.A. Benjamin, 1971.