APA (7th ed.) Zitazioa
Frick, D., & Hoefert, H. (1986). The Quality of Urban Life: Social, Psychological, and Physical Conditions. Walter de Gruyter.
Chicago Style (17th ed.) Zitazioa
Frick, Dieter, eta Hans-Wolfgang Hoefert. The Quality of Urban Life: Social, Psychological, and Physical Conditions. Berlín, Alemania: Walter de Gruyter, 1986.
MLA (9th ed.) Zitazioa
Frick, Dieter, eta Hans-Wolfgang Hoefert. The Quality of Urban Life: Social, Psychological, and Physical Conditions. Walter de Gruyter, 1986.
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