APA引文

Emrie, W. J. (1970). Recreation problems in the urban impacted areas of California. State of California, Dept. of Parks and Recreation.

Chicago Style (17th ed.) Citation

Emrie, William J. Recreation Problems in the Urban Impacted Areas of California. Sacramento: State of California, Dept. of Parks and Recreation, 1970.

MLA引文

Emrie, William J. Recreation Problems in the Urban Impacted Areas of California. State of California, Dept. of Parks and Recreation, 1970.