International Organization for Standardization. Geometrical product specifications (GPS) - Geometrical tolerancing - Tolerances of form, orientation, location and run-out: Spécification géométrique des produits (GPS) - Tolérancement géométrique - Tolérances de forme, orientation, position et battement (Fourth edition.).
Chicago Style (17th ed.) CitationInternational Organization for Standardization. Geometrical Product Specifications (GPS) - Geometrical Tolerancing - Tolerances of Form, Orientation, Location and Run-out: Spécification Géométrique Des Produits (GPS) - Tolérancement Géométrique - Tolérances De Forme, Orientation, Position Et Battement. Fourth edition. Suiza.
MLA (9th ed.) CitationInternational Organization for Standardization. Geometrical Product Specifications (GPS) - Geometrical Tolerancing - Tolerances of Form, Orientation, Location and Run-out: Spécification Géométrique Des Produits (GPS) - Tolérancement Géométrique - Tolérances De Forme, Orientation, Position Et Battement. Fourth edition.