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Dyfyniad Arddull ChicagoPoskitt, B., J. Wilkinson, F. Wojnarowska, and Y. Chia. Patchy Speckled Bath PUVA Pigmentation. 1993.
Dyfyniad MLAPoskitt, B., et al. Patchy Speckled Bath PUVA Pigmentation. 1993.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.