What it could look like
Now your text and Reference List could look something like this:
Literature Survey
According to a major study (Berkowitz, 2006) direct marketing is the most successful means of selling most products. This is especially true in the health sector. Bodian, in his 1995 guide (Bodian, 1995) points out the simplest methods of setting up such systems.
There is some dispute whether or not direct marketing can reach all target groups. Two studies (Lyles, 2002; Neff, 1998) have shown that in relation to marketing drugs, the direct route was the most successful, with a greater than 12% uptake, but others (Wang & Petrison, 2006; Bird 2007; Hollon, 1999) claim that other marketing methods can be just as successful.
Reference ListBerkowitz, E.N. (2006) Essentials of health care marketing, Jones & Bartlett Publishers.
Bird, D. (2007) Commonsense Direct and Digital Marketing: 12 5th ed., Kogan Page.
Bodian, N.G. (1995) Direct marketing rules of thumb, McGraw-Hill Professional.
Hollon, M.F. (1999) Direct-to-consumer marketing of prescription drugs: creating consumer demand. Jama, 281(4), 382.
Lyles, A. (2002) DIRECT MARKETING OF PHARMACEUTICALS TO CONSUMERS. Annual Review of Public Health, 23(1), 73.
Neff, J. (1998) Direct marketing on rise with DTC. Advertising Age, 69(11), S22.
Wang, P. & Petrison, L.A. (2006) Direct marketing activities and personal privacy. A consumer survey. Journal of Direct Marketing, 7(1), 7–19.
