(1999). 1999 ASLA/LAF summit white papers.
Cita Chicago (17th ed.)1999 ASLA/LAF Summit White Papers. 1999.
Cita MLA (9th ed.)1999 ASLA/LAF Summit White Papers. 1999.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)