Cita APA (7th ed.)

Keith-Lucas, A. (1994). Giving and taking help (Rev. ed.). NAA.

Cita Chicago (17th ed.)

Keith-Lucas, Alan. Giving and Taking Help. Rev. ed. Pennsylvania: NAA, 1994.

Cita MLA (9th ed.)

Keith-Lucas, Alan. Giving and Taking Help. Rev. ed. NAA, 1994.