APA

Stevenson M., Armstrong S. J., Ford-Lloyd B. V. & Jones G. H. (19990225). Comparative analysis of crossover exchanges and chiasmata in Allium cepa x fistulosum after genomic in situ hybridization (GISH). : Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology.

Chicago

Stevenson M, Armstrong S J, Ford-Lloyd B V and Jones G H. 19990225. Comparative analysis of crossover exchanges and chiasmata in Allium cepa x fistulosum after genomic in situ hybridization (GISH). : Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology.

Harvard

Stevenson M., Armstrong S. J., Ford-Lloyd B. V. and Jones G. H. (19990225). Comparative analysis of crossover exchanges and chiasmata in Allium cepa x fistulosum after genomic in situ hybridization (GISH). : Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology.

MLA

Stevenson M, Armstrong S J, Ford-Lloyd B V and Jones G H. Comparative analysis of crossover exchanges and chiasmata in Allium cepa x fistulosum after genomic in situ hybridization (GISH). : Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology. 19990225.