APA Style
Johnson, Ricard. (1973).
theory and Managemant of Systems .
London:
Intrnational.
Chicago Style
Johnson, Ricard.
theory and Managemant of Systems.
London:
Intrnational,
1973.
Text.
MLA Style
Johnson, Ricard.
theory and Managemant of Systems.
London:
Intrnational,
1973.
Text.
Turabian Style
Johnson, Ricard.
theory and Managemant of Systems.
London:
Intrnational,
1973.
Print.