Dangos 1 - 2 canlyniadau o 2 ar gyfer chwilio 'International Biological Programme', amser ymholiad: 0.01e Mireinio'r Canlyniadau
  1. 1

    Humic substances, their structure and function in the biosphere proceedings of an international meeting held at Nieuwersluis, the Netherlands, May 29-31, 1972

    Cyhoeddwyd 1975
    Llyfr

    Humic substances, their structure and function in the biosphere proceedings of an international meeting held at Nieuwersluis, the Netherlands, May 29-31, 1972
  2. 2

    Primary productivity in aquatic environments proceedings of an I.B.P. PF symposium, Pallanza, Italy, April 26-May 1, 1965

    Cyhoeddwyd 1966
    Llyfr

    Primary productivity in aquatic environments proceedings of an I.B.P. PF symposium, Pallanza, Italy, April 26-May 1, 1965

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