APA
Johnson Philip G, . (1956). Science facilities for secondary schools: Guiding principles and suggestions for planning and developing instructional for science teaching. Washington, USA: U.S. Government Printing Office.
Chicago
Johnson Philip G, . 1956. Science facilities for secondary schools: Guiding principles and suggestions for planning and developing instructional for science teaching. Washington, USA: U.S. Government Printing Office.
Harvard
Johnson Philip G, . (1956). Science facilities for secondary schools: Guiding principles and suggestions for planning and developing instructional for science teaching. Washington, USA: U.S. Government Printing Office.
MLA
Johnson Philip G, . Science facilities for secondary schools: Guiding principles and suggestions for planning and developing instructional for science teaching. Washington, USA: U.S. Government Printing Office. 1956.