Aquatic Plant News – Issue Number 19 – June 1972

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Aquatic Plant News – Issue Number 18 – April 1972

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Aquatic Plant News – Issue Number 17 – December 1971

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Aquatic Plant News – Issue Number 16 – August 1971

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Aquatic Plant News – Issue Number 15 – April 1971

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Aquatic Plant News – Issue Number 14 – December 1970

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Aquatic Plant News – Issue Number 13 – May 1970

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Aquatic Plant News – Issue Number 12 – February 1970

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Aquatic Plant News – Issue Number 11 – September 1969

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Aquatic Plant News – Issue Number 10 – June 1969

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