Citing References Within the Text
References within the text should be listed in the order of citation, using superscript numerals. Separate reference numbers with a comma, but no space; a sequence of three or more consecutive references can be shortened to the range of numbers.
Example: Some recommend development of a comprehensive marketing plan (see Figure 1).1,2 However, others recommend conducting a needs assessment first.3-8 Meyers has performed significant research in the area.4,6,9-12 He found that an adequate needs assessment can prevent improper allocation of resources (personal communication, April, 2001).