Citace podle APA (7th ed.)

Stevens, R. (1969). Out-of school science activities for young people. United Nations Educational Scientific and Cultural Organization.

Citace podle Chicago (17th ed.)

Stevens, Roger. Out-of School Science Activities for Young People. United Nations Educational,Scientific and Cultural Organization: United Nations Educational Scientific and Cultural Organization, 1969.

Citace podle MLA (9th ed.)

Stevens, Roger. Out-of School Science Activities for Young People. United Nations Educational Scientific and Cultural Organization, 1969.

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