APA (7th ed.) Citation

(1969). Communities: Student manual (Trial ed.). Science Curriculum Improvement Study.

Chicago Style (17th ed.) Citation

Communities: Student Manual. Trial ed. Berkeley, CA: Science Curriculum Improvement Study, 1969.

MLA (9th ed.) Citation

Communities: Student Manual. Trial ed. Science Curriculum Improvement Study, 1969.

Warning: These citations may not always be 100% accurate.