Cita APA (7a ed.)

Pennink, B. (1992). This is San Francisco. Heinemann Elt.

Cita Chicago Style (17a ed.)

Pennink, Betsy. This Is San Francisco. Oxford: Heinemann Elt, 1992.

Cita MLA (8a ed.)

Pennink, Betsy. This Is San Francisco. Heinemann Elt, 1992.