Lenssen, P. (1974). The Free-Form-Five (ff5): A Canadian "Casework" or Furniture and Equipment System for Schools. Programme on Educational Building 4.
Chicago Style (17th ed.) CitationLenssen, Paul. The Free-Form-Five (ff5): A Canadian "Casework" or Furniture and Equipment System for Schools. Programme on Educational Building 4. 1974.
MLA (9th ed.) CitationLenssen, Paul. The Free-Form-Five (ff5): A Canadian "Casework" or Furniture and Equipment System for Schools. Programme on Educational Building 4. 1974.
Warning: These citations may not always be 100% accurate.