Spencer, J. F. (2007). Science month-by-month, grades 3-8: Practical ideas and activities for teachers and homeschoolers. Jossey-Bass.
Citace podle Chicago (17th ed.)Spencer, Julia Farish. Science Month-by-month, Grades 3-8: Practical Ideas and Activities for Teachers and Homeschoolers. San Francisco: Jossey-Bass, 2007.
Citace podle MLA (9th ed.)Spencer, Julia Farish. Science Month-by-month, Grades 3-8: Practical Ideas and Activities for Teachers and Homeschoolers. Jossey-Bass, 2007.
Upozornění: Tyto citace jsou generovány automaticky. Nemusí být zcela správně podle citačních pravidel..