APA

Pennink B., . (1992). This is San Francisco. New York: Heinemann Guided Readers.

Chicago

Pennink Betsy, . 1992. This is San Francisco. New York: Heinemann Guided Readers.

Harvard

Pennink B., . (1992). This is San Francisco. New York: Heinemann Guided Readers.

MLA

Pennink Betsy, . This is San Francisco. New York: Heinemann Guided Readers. 1992.