Biogas.

Biogas Facilities.

Biogas projects.

Antriebslösungen für Biogas- und Biodieselanlagen A 6036.

Diesel plant operations handbook /

Plant engineering handbook. I.

Plant engineering handbook. II.

The Chemotaxonomy of plants.

Chemical pilot plant practice.

Study of Mediterranean woody plants for hardiness in central Europe conditions /

Plant engineering handbook : prepared by a staff of specialist /

Plant and soil : international journal of plant nutrition, plant chemistry, soil microbiology and soil-borne plant diseases.

Plant partnerships. /

Plant physiology /

The Carnivorous Plants.

Plant microtechnique /

Cytomorphogenesis in plants /

Transports in Plants 3 Intercellular interactions and transport processes

The Cuticles of Plants /

Pigments in plants /

Biogas plants in Europe : a practical handbook /