Citace podle APA (7th ed.)

Urban Environment Collaborative (Philadelphia). (1971). Learning to get around: An urban environment mapping unit. School District of Philadelphia.

Citace podle Chicago (17th ed.)

Urban Environment Collaborative (Philadelphia). Learning to Get Around: An Urban Environment Mapping Unit. Philadelphia, Penn: School District of Philadelphia, 1971.

Citace podle MLA (9th ed.)

Urban Environment Collaborative (Philadelphia). Learning to Get Around: An Urban Environment Mapping Unit. School District of Philadelphia, 1971.

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