Lua APA (7ú heag.)

Hardwick, P., & Langmead, J. a. K. B. (1999). An Introduction to modern economics (5th ed.). Prentice Hall.

Lua i Stíl Chicago (17ú heag.)

Hardwick, Philip, agus John and Khan Bhadur Langmead. An Introduction to Modern Economics. 5th ed. Harlow, England: Prentice Hall, 1999.

Lua MLA (9ú heag.)

Hardwick, Philip, agus John and Khan Bhadur Langmead. An Introduction to Modern Economics. 5th ed. Prentice Hall, 1999.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.