Gschwandtner, G. (2006). 201 super sales tips: Field-tested strategies for painless prospecting, perfect presentations, and a quick close every time. New York, N.Y: McGraw Hill.
استشهاد بنمط شيكاغوGschwandtner, Gerhard. 201 Super Sales Tips: Field-tested Strategies for Painless Prospecting, Perfect Presentations, and a Quick Close Every Time. New York, N.Y: McGraw Hill, 2006.
MLA استشهادGschwandtner, Gerhard. 201 Super Sales Tips: Field-tested Strategies for Painless Prospecting, Perfect Presentations, and a Quick Close Every Time. New York, N.Y: McGraw Hill, 2006.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.