Cita APA (7th ed.)

Cull, R. (1980). Concepts of science -1, 2,3 (3.). Wiley Eastern.

Cita Chicago (17th ed.)

Cull, R. Concepts of Science -1, 2,3. 3. NewDelhi: Wiley Eastern, 1980.

Cita MLA (9th ed.)

Cull, R. Concepts of Science -1, 2,3. 3. Wiley Eastern, 1980.