Question: Plotting a piece of an implicit equation and a point on the curve

How do I plot a piece of the implicit curve y^4=y^2-x^2 (when x = 0.1 .. 0.3 and y = 0.1 .. 0.3) and the point (0.2, 0.2043096437) on the curve with a different color compared to the implicit curve? I want that both x axis and y axis represents the interval (-0.5,0.5).

I'm using Maple 18


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