Dyfyniad APA

Hadfield, S. How to be assertive in any situation (1.). Pearson Education UK.

Dyfyniad Arddull Chicago

Hadfield, Sue;Hasson. How to Be Assertive in Any Situation. 1. Pearson Education UK.

Dyfyniad MLA

Hadfield, Sue;Hasson. How to Be Assertive in Any Situation. 1. Pearson Education UK.

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