APA (7th ed.) Citation

Symposium on Purine and Pyrimidine Metabolism <1976, London, England>. (1977). Purine and pyrimidine metabolism. Elsevier/Excerpta Medica/North-Holland.

Chicago Style (17th ed.) Citation

Symposium on Purine and Pyrimidine Metabolism <1976, London, England>. Purine and Pyrimidine Metabolism. Amsterdam: Elsevier/Excerpta Medica/North-Holland, 1977.

MLA (9th ed.) Citation

Symposium on Purine and Pyrimidine Metabolism <1976, London, England>. Purine and Pyrimidine Metabolism. Elsevier/Excerpta Medica/North-Holland, 1977.