Cita APA (7th ed.)

Obande, M. O. (1990). Blocklaying and concreting (2nd ed.). Longman Group.

Cita Chicago (17th ed.)

Obande, M. O. Blocklaying and Concreting. 2nd ed. Essex: Longman Group, 1990.

Cita MLA (8th ed.)

Obande, M. O. Blocklaying and Concreting. 2nd ed. Longman Group, 1990.

Atenció: Aquestes cites poden no estar 100% correctes.