Παραπομπή APA

Bolles, R. N. (1978). The tree boxes of life: And how to get out of them : An introduction to life/work planning. Berkeley, CA: Ten Speed Press.

Παραπομπή Chicago Style

Bolles, Richard Nelson. The Tree Boxes of Life: And How to Get Out of Them : An Introduction to Life/work Planning. Berkeley, CA: Ten Speed Press, 1978.

Παραπομπή MLA

Bolles, Richard Nelson. The Tree Boxes of Life: And How to Get Out of Them : An Introduction to Life/work Planning. Berkeley, CA: Ten Speed Press, 1978.

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