APA (7th ed.) Citation

Sigurdson, S. E., & Others, A. (1981). The Block Plan. Grade Seven Instructional Manual.

Chicago Style (17th ed.) Citation

Sigurdson, Sol E., and And Others. The Block Plan. Grade Seven Instructional Manual. 1981.

MLA (9th ed.) Citation

Sigurdson, Sol E., and And Others. The Block Plan. Grade Seven Instructional Manual. 1981.

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