National Association of State Directors of Teacher Education and Certification. (1963). Secondary school science and mathematics teachers. National Science Foundation.
Чикаго стиль цитування (17-те видання)National Association of State Directors of Teacher Education and Certification. Secondary School Science and Mathematics Teachers. Wash.: National Science Foundation, 1963.
Стиль цитування MLA (8-ме видання)National Association of State Directors of Teacher Education and Certification. Secondary School Science and Mathematics Teachers. National Science Foundation, 1963.
Попередження: стилі цитування не завжди правильні на всі 100%.