APA Reference: This is basically just an application of APA’s general hyphenation principles listed in APA . The hyphen is used because the number and grade are used together to modify “class,” “book,” “test,” or whatever word follows. Some schools might say you don’t have to use the hyphen, so you could ask your thesis or dissertation reviewer, but it’s much better to include the hyphen than to exclude it. Basically it is never incorrect to hyphenate a compound like this–it might turn out that a school or journal has a preference not to do it, but it’s always better to hyphenate a compound modifier when you’re not sure.
VSA Inc formally known as Vogal – Swygard was founded in 1935. Richard Cole started out as a salesman in 1974 and became part owner / President of the Dallas location in 1981. VSA corporate headquarters and parts warehouse are located in Dallas, Texas at 10550 Shady Trail 75220. Dallas Pittman became part owner / Vice President of the Houston location in 1989. VSA Inc is a Factory Representative of petroleum, automotive, industrial and oil field supply parts and equipment. VSA Inc has been serving the Southwest territory for 76 years.